Quotes of All Topics . Occasions . Authors
In the days of thy youth seek to obtain that which shall compensate the losses of thy old age.
No human investigation can be called real science if it cannot be demonstrated mathematically.
The worst evil which can befall the artist is that his work should appear good in his own eyes.
How painting surpasses all human works by reason of the subtle possibilities which it contains.
Shadow is the diminution alike of light and of darkness, and stands between darkness and light.
Just as a well-filled day brings blessed sleep, so a well-employed life brings a blessed death.
Those who, in debate, appeal to their qualifications, argue from memory, not from understanding.
Experience does not err. Only your judgments err by expecting from her what is not in her power.
The discovery of a good wine is increasingly better for mankind than the discovery of a new star.
Knowledge of the past and of the places of the earth is the ornament and food of the mind of man.
The part always has a tendency to reunite with its whole in order to escape from its imperfection.
The painter will produce pictures of little merit if he takes the works of others as his standard.
To be a winner you must want to win but must know of the chance of losing and must not fear of it.
Nature varies the seed according to the variety of the things she desires to produce in the world.
Men of genius sometimes accomplish most when they work least, for they are thinking out inventions.
Many will be busied in taking away from a thing, which will grow in proportion as it is diminished.
No human investigation can claim to be scientific if it doesn't pass the test of mathematical proof.
Ogni nostra cognitione prīcipia da sentimēti. All our knowledge has its origin in our preceptions.
As every divided kingdom falls, so every mind divided between many studies confounds and saps itself.
The function of muscle is to pull and not to push, except in the case of the genitals and the tongue.
One day the world will look upon research upon animals as it now looks upon research on human beings.
To any white body receiving the light from the sun, or the air, the shadows will be of a bluish cast.
It is an acknowledged fact that we perceive errors in the work of others more readily than in our own.
If you put on more clothes as the cold increases, it will have no power to hurt you. Let us hope that.
Every part is disposed to unite with the whole, that it may thereby escape from its own incompleteness.
If you do not rest on the good foundation of nature, you will labour with little honor and less profit.
Painting is poetry that is seen rather than felt, and poetry is painting that is felt rather than seen.
The body of the earth is of the nature of a fish... because it draws water as its breath instead of air.
The eye is the window of the human body through which it feels its way and enjoys the beauty of the world.
Old age takes in part savoury wisdom for its food - see to that your old age will not lack in nourishment.
There are three classes of people: those who see, those who see when they are shown, those who do not see.
You should prefer a good scientist without literary abilities than a literate one without scientific skills
You must grow in patience when you meet with great wrongs, and they will then be powerless to vex your mind.
I am never weary of being useful... In serving others I cannot do enough. No labor is sufficient to tire me.
Supreme happiness will be the greatest cause of misery, and the perfection of wisdom the occassion of folly.
People reveal themselves completely only when they are thrown out of the customary conditions of their life.
It is a far worthier thing to read by the light of experience than to adorn oneself with the labors of others.
An artist's studio should be a small space because small rooms discipline the mind and large ones distract it.
Drawing is based upon perspective, which is nothing else than a thorough knowledge of the function of the eye.
Feathers shall raise men even as they do birds towards heaven :- That is by letters written with their quills.
There is no result in nature without a cause; understand the cause and you will have no need of the experiment.
The fame of the rich man dies with him; the fame of the treasure, and not of the man who possessed it, remains.
Things that are separate shall be united and acquire such virtue that they will restore to man his lost memory.
The light and heat of the universe comes from the sun, and its cold and darkness from the withdrawal of the sun.
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.
The first object of the painter is to make a flat plane appear as a body in relief and projecting from that plane
Iron rusts from disuse; water loses its purity from stagnation... even so does inaction sap the vigor of the mind.
Make yourself a master of perspective, then acquire perfect knowledge of the proportions of men and other animals.
The knowledge of the past times and of the places of the earth is both an ornament and nutriment to the human mind.
Nothing will be left, Nothing in the air, nothing under the earth, nothing in the waters. All will be exterminated.