There is no higher or lower knowledge, but one only, flowing out of experimentation.
Beyond a doubt truth bears the same relation to falsehood as light to darkness.
Knowledge of the past and of the places of the earth is the ornament and food of the mind of man.
Avoid the precepts of those thinkers whose reasoning is not confirmed by experience.
When once you have tasted flight, you will forever walk the earth with your eyes turned skyward, for there you have been, and there you will always long to return.
If you cause your ship to stop and place the head of a long tube in the water and place the outer extremity to your ear, you will hear ships at a great distance from you.
Though I may not ... be able to quote other authors, I shall rely on that which is much greater and more worthy -- on experience.
Nothing should be so greatly feared as empty fame.
Life without love, is no life at all.
We, by our arts may be called the grandsons of God.
There is nothing which deceives us as much as our own judgement.
I am still hopeful. A falcon, Time. But the coincidence is probably accidental.
Make your work to be in keeping with your purpose.
Therefore, O students, study mathematics and do not build without foundations.
Men of genius sometimes accomplish most when they work least, for they are thinking out inventions.
The mole has very small eyes and it always lives under ground; and it lives as long as it is in the dark but when it comes into the light it dies immediately, because it becomes known; -- and so it is with lies.
He who possesses most must be most afraid of loss.
Feathers shall raise men even as they do birds towards heaven. That is by letters written with their quills.
The instant the atmosphere is illuminated it will be filled with an infinite number of images which are produced by the various bodies and colours assembled in it. And the eye is the target, a lodestone, of these images.
The eye is the window of the human body through which it feels its way and enjoys the beauty of the world.
The great man presides over all his states of consciousness with obstinate rigor.
How many emperors and how many princes have lived and died and no record of them remains, and they only sought to gain dominions and riches in order that their fame might be ever-lasting.
No human investigation can be called real science if it cannot be demonstrated mathematically.
No human investigation can be called real knowledge if it does not pass through mathematical demonstrations; and if you say that the kinds of knowledge that begin and end in the mind have any value as truth, this cannot be conceded, but rather must be denied for many reasons, and first of all because in such mental discussions there is no experimentation, without which nothing provides certainty of itself.
I have offended God and mankind because my work didn't reach the quality it should have.
A painter should begin every canvas with a wash of black, because all things in nature are dark except where exposed by the light.
Once you have tasted flight, you will forever walk the earth with your eyes turned skyward, for there you have been, and there you will always long to return.
All objects transmit their image to the eye in pyramids and the nearer to the eye these pyramids are intersected the smaller will the image appear of the objects which cause them.
It should not be hard for you to stop sometimes and look into the stains of walls, or ashes of a fire, or clouds, or mud or like places, in which...you may find really marvellous ideas.
In life beauty perishes, but not in art.
In nature's inventions nothing is lacking and nothing is superfluous.
Movement will fail sooner than usefulness.
Weight, force and casual impulse, together with resistance, are the four external powers in which all the visible actions of mortals have their being and their end.
Whoever despises the high wisdom of mathematics nourishes himself on delusion and will never still the sophistic sciences whose only product is an eternal uproar.
Make your faces so that they do not all have the same expression, as one sees with most painters, but give them different expression, according to age, complexion, and good or bad character.
Your brain is much better than you think; just use it!
He who does not punish evil commands it to be done.
Here is a thing which the more you fear and avoid it the nearer you approach to it, and this is misery; the more you flee from it the more miserable and restless you will become.
Study without desire spoils the memory, and it retains nothing that it takes in.
Nothing is hidden under the sun.
In time and with water, everything changes.
I love those that can smile in trouble.
I love those who can smile in trouble, who can gather strength from distress, and grow brave by reflection. ‘Tis the business of little minds to shrink, but they whose heart is firm, and whose conscience approves their conduct, will pursue their principles unto death.
The motions of men must be such as suggest their dignity or their baseness.
He who wishes to be rich in a day will be hanged in a year.
Where there is most feeling, there is the greatest martyrdom.
Necessity is the mistress and guide of nature. Necessity is the theme and inventress of nature, her curb and her eternal law.
Fire destroys all sophistry, that is deceit; and maintains truth alone, that is gold.
Art is never finished, only abandoned.
Nothing can be loved or hated unless it is first known.
I abhor the supreme folly of those who blame the disciples of nature in defiance of those masters who were themselves her pupils.
One shall be born from small beginnings which will rapidly become vast. This will respect no created thing, rather will it, by its power, transform almost every thing from its own nature into another.
I have discovered that a screw-shaped device such as this, if it is well made from starched linen, will rise in the air if turned quickly.
The good painter must paint two things: a person and the essence of his soul.
All our knowledge is the offspring of our perceptions.
It vexes me greatly that having to earn my living has forced me to interrupt the work and to attend to small matters.
The faculty of imagination is both the rudder and the bridle of the senses.
A deaf and dumb person who sees two men in conversation may nevertheless understand from the attitudes and gestures of the speakers, how well their discussion is getting along.
Our body is dependent on heaven and heaven on the Spirit.
The discovery of a good wine is increasingly better for mankind than the discovery of a new star.
Although nature commences with reason and ends in experience it is necessary for us to do the opposite, that is to commence with experience and from this to proceed to investigate the reason.
Do not imitate one another's style. If you do, so far as your art is concerned you will be called a grandson, rather than the son of Nature.
The painter will produce pictures of little merit if he takes the works of others as his standard.
Inaction saps the vigor of the mind.
Painting is poetry that is seen rather than felt, and poetry is painting that is felt rather than seen.
Old age takes in part savoury wisdom for its food -- see to that your old age will not lack in nourishment.
We know more about the movement of celestial bodies than about the soil underfoot.
When you put your hand in a flowing stream, you touch the last that has gone before and the first of what is still to come.
Intellectual passion dries out sensuality.
Common sense is that which judges the things given to it by other senses.
Let not your rage or malice destroy a life.
Men of lofty genius sometimes accomplish the most when they work least, for their minds are occupied with their ideas and the perfection of their conceptions, to which they afterwards give form.
I have from an early age abjured the use of meat, and the time will come when men such as I will look upon the murder of animals as they now look upon the murder of men.
It reflects no great honour on a painter to be able to execute one thing well.
The knowledge of the past times and of the places of the earth is both an ornament and nutriment to the human mind.
Great love is born of great knowledge of the thing that is loved, and if you do not know it, you can love it little or not at all.
Not to appreciate life, all of life, is not to deserve it.
Every action needs to be prompted by a motive.
Just as iron rusts from disuse, and stagnant water putrefies, or when cold turns to ice, so our intellect wastes unless it is kept in use.
The moment has no time.
True and great love springs out of great knowledge, and where you know little you can love but little or not at all.
The grave will fall in upon him who digs it.
Who sows virtue reaps honor.
What induces you, oh man, to depart from your home in town, to leave parents and friends, and go to the countryside over mountains and valleys, if it is not for the beauty of the world of nature?
For once you have tasted flight you will walk the Earth with your eyes turned skywards, for there you have been and there you will long to return.
The senses are of the earth, the reason stands apart from them in contemplation.
I love this site. It was lovingly hand-shaped it. Your soul transformed this into this art. It was perfect. I have tried to create another equal to it... but to no avail, so I will just have to paint the Sistine Chapel.
A good memory, which nature has endowed us with, causes things long past to seem present.
Nature is the source of all true knowledge. She has her own logic, her own laws, she has no effect without cause nor invention without necessity.
We might say that the earth has the spirit of growth; that its flesh is the soil.
Anyone who invokes authors in discussion is not using his intelligence but his memory.
Art is the queen of all sciences communicating knowledge to all the generations of the world.
The painter strives and competes with nature.
Learning is the only thing that never disappoints us.
Perspective is a most subtle discovery in mathematical studies, for by means of lines it causes to appear distant that which is near, and large that which is small.
Poor is the man who desires a lot.
Nothing strengthens authority so much as silence.
If on your own or by the criticism of others you discover error in your work, correct it then and there; otherwise in exposing your work to the public, you will expose your error also.
O painter skilled in anatomy, beware lest the undue prominence of the bones, sinews and muscles cause you to become a wooden painter from the desire to make your nude figures reveal all.
Every man at three years old is half his height.
Blinding ignorance does mislead us. O! Wretched mortals, open your eyes!
He who never puts his trust in any man will never be deceived.
Black is like a broken vessel, which is deprived of the capacity to contain anything.
Life well spent is long.
Men born in hot countries love the night because it refreshes them and have a horror of light because it burns them.
Drawing is based upon perspective, which is nothing else than a thorough knowledge of the function of the eye.
When counting, try not to mix chickens with blessings.
You can have no dominion greater or less than that over yourself.
Among the great things which are found among us the existence of Nothing is the greatest.
Anyone who conducts an argument by appealing to authority is not using his intelligence, he is just using his memory.
Water is the driving force in nature.
Such is the supreme folly of man that he labours so as to labour no more.
I have solved what color is, however ; I still have no idea about what line is.
In rivers, the water that you touch is the last of what has passed and the first of that which comes; so with present time.
It is better to imitate ancient than modern work.
Learn how to see. Realize that everything connects to everything else.
As you cannot do what you want, want what you can do.
Just as food eaten without appetite is a tedious nourishment, so does study without zeal damage the memory by not assimilating what it absorbs.
The most beautiful words of love are told in silence for a look.
Darkness is absence of light. Shadow is diminution of light.
If you put on more garments, the cold cannot reach you. Similarly, increase your patience and concentration and even great injuries cannot vex your mind.
A bird is an instrument working according to mathematical law, which instrument it is within the capacity of man to reproduce with all its movements.
For, verily, great love springs from great knowledge of the beloved object, and if you little know it, you will be able to love it only little or not at all.
Just as a well-filled day brings blessed sleep, so a well-employed life brings a blessed death.
As a well-spent day brings happy sleep, so a life well spent brings happy death.
If we make mistakes in our first compositions and do not know them, we may not amend them.
The mind of a painter should be like a mirror which is filled with as many images as there are things placed before him.
The noblest pleasure is the joy of understanding.
The imagination is to the effect as the shadow to the opaque body which causes the shadow.
If the thing loved is base, the lover becomes base.
The act of procreation and anything that has any relation to it is so disgusting that human beings would soon die out if there were no pretty faces and sensuous dispositions.
Every loss which we incur leaves behind it vexation in the memory, save the greatest loss of all, that is, death, which annihilates the memory, together with life.
A beautiful body perishes, but a work of art dies not.
The boundaries of bodies are the least of all things.
The time will come when men such as I will look upon the murder of animals as they now look on the murder of men.
Many have made a trade of delusions and false miracles, deceiving the stupid multitudes.
To discover the soul living in somebody's body, we watch the surrounding of the body, and if it's messy and disordered, so is the soul.
A clever man without wisdom is like a beautiful flower without fragrance.
Our life is made by the death of others.
Learn diligence before speedy execution.
Wisdom is the daughter of experience.
Being willing is not enough. We must do.
Poor is the pupil who does not surpass his master.
Shadow is the diminution alike of light and of darkness, and stands between darkness and light.
The painter who draws merely by practice and by eye, without any reason, is like a mirror which copies every thing placed in front of it without being conscious of their existence.
Every now and then go away, have a little relaxation, for when you come back to your work your judgment will be surer.
Oh! how foul a thing, that we should see the tongue of one animal in the guts of another.
While I thought that I was learning how to live, I have been learning how to die.
Men standing in opposite hemispheres will converse and deride each other and embrace each other, and understand each other's language.
Wherever good fortune enters, envy lays siege to the place and attacks it; and when it departs, sorrow and repentance remain behind.
The light and heat of the universe comes from the sun, and its cold and darkness from the withdrawal of the sun.
Perspective is to painting what the bridle is to the horse, the rudder to a ship.
The air moves like a river and carries the clouds with it; just as running water carries all the things that float upon it.
Painting is concerned with all the 10 attributes of sight; which are: Darkness, Light, Solidity and Colour, Form and Position, Distance and Propinquity, Motion and Rest.
Poetry is superior to painting in the presentation of words, and painting is superior to poetry in the presentation of facts. For this reason I judge painting to be superior to poetry.
Once you have tasted the taste of sky, you will forever look up.
I have been impressed with the urgency of doing.
I have been impressed with the urgency of doing. Knowing is not enough we must apply. Being willing is not enough; we must do.
Even the richest soil, if left uncultivated will produce the rankest weeds.
I roamed the countryside searching for answers to things I did not understand.
I roamed the countryside searching for the answers to things I did not understand. Why shells existed on the tops of mountains along with the imprints of coral and plant and seaweed usually found in the sea. Why the thunder lasts a longer time than that which causes it and why immediately on its creation the lightening becomes visible to the eye while thunder requires time to travel. How the various circles of water form around the spot which has been struck by a stone and why a bird sustains itself in the air. These questions and other strange phenomena engaged my thought throughout my life.
A well-spent day brings happy sleep.
Painting embraces and contains within itself all the things which nature produces or which results from the fortuitous actions of men... he is but a poor master who makes only a single figure well.
The fame of the rich man dies with him; the fame of the treasure, and not of the man who possessed it, remains.
The mind of the painter must resemble a mirror, which always takes the colour of the object it reflects and is completely occupied by the images of as many objects as are in front of it.
Those who fall in love with practice without science are like a sailor who enters a ship without a helm or a compass, and who never can be certain whither he is going.
He who in reasoning cites authority is making use of his memory rather than of his intellect.
He who is fixed to a star does not change his mind.
A long life is a life well spent.
Why does the eye see a thing more clearly in dreams than the imagination when awake?
Medicine is the restoration of discordant elements.
Whatever you think matters -- doesn't. Follow this rule, and you will add decades to your life. Rodger Rosenblatt As a well spent day brings happy sleep, so life well used brings happy death.
We are deceived by promises and time disappoints us.
Man and animals are in reality vehicles and conduits of food, tombs of animals, hostels of Death, coverings that consume, deriving life by the death of others.
How painting surpasses all human works by reason of the subtle possibilities which it contains.
Iron rusts from disuse even so does inaction sap the vigor of the mind.
In fact, whatever exists in the universe, in essence, in appearance, in the imagination, the painter has first in his mind and then in his hands ... it lies in his power to create them.
Experience never errs; it is only your judgments that err by promising themselves effects such as are not caused by your experiments.
Experience never misleads; what you are misled by is only your judgment, and this misleads you by anticipating results from experience of a kind that is not produced by your experiments.
The vine that has grown old on an old tree falls with the ruin of that tree, and through that bad companionship must perish with it.
Every part is disposed to unite with the whole, that it may thereby escape from its own incompleteness.
Wood feeds the fire which burns it.
Look at light and admire its beauty. Close your eyes, and then look again: what you saw is no longer there; and what you will see later is not yet.
The men of experiment are like the ant; they only collect and use. But the bee...gathers its materials from the flowers of the garden and of the field, but transforms and digests it by a power of its own.
Experiment is the sole interpreter of the artifices of Nature.
As every divided kingdom falls, so every mind divided between many studies confounds and saps itself.
O admirable necessity! O powerful action! What mind can penetrate your nature? What language can express this marvel? None, to be sure. This is where human discourse turns toward the contemplation of the divine.
Man has much power of discourse which for the most part is vain and false; animals have but little, but it is useful and true, and a small truth is better than a great lie.
Time stays long enough for those who use it.
Let proportion be found not only in numbers and measures, but also in sounds, weights, times, and positions, and what ever force there is.
Make yourself a master of perspective, then acquire perfect knowledge of the proportions of men and other animals.
Make an effort to collect the good features from many beautiful faces.
Thirst will parch your tongue and your body will waste through lack of sleep ere you can describe in words that which painting instantly sets before the eye.
A day will come in which men will look upon an animal's murder the same way they look today upon a man's murder.
He who does not value life does not deserve it.
Necessity is a guardian in Nature.
Practice should always be based upon a sound knowledge of theory.
O mighty and once living instrument of formative nature. Incapable of availing thyself of thy vast strength thou hast to abandon a life of stillness and to obey the law which God and time gave to procreative nature.
Realize that everything connects to everything else.
Lust is the cause of generation.
Lust is the cause of generation
Appetite is the support of life
Fear or timidity is the prolongation of life, and
Fraud the preservation of its instruments.
Mechanics is the paradise of the mathematical sciences because by means of it, one comes to the fruits of mathematics.
My body is not a tomb for animals.
The greatest deception men suffer is from their own opinions.
I am never weary of being useful... In serving others I cannot do enough. No labor is sufficient to tire me.
All knowledge which ends in words will die as quickly as it came to life, with the exception of the written word: which is its mechanical part.
Nature alone is the master of true genius.
Just as courage is the danger of life, so is fear its safeguard.
A good painter has two main objects to paint, man and the intention of his soul. The former is easy, the latter hard as he has to represent it by the attitude and movement of the limbs.