Society and the World

Whoever does not respect life, does not deserve it.

There shall be wings! If the accomplishment be not for me, ’tis for some other. The spirit cannot die; and man, who shall know all and shall have wings.

Art lives from constraints and dies from freedom.

Those who are enamored of practice without science are like a pilot who goes into a ship without rudder or compass and never has any certainty of where he is going. Practice should always be based upon a sound knowledge of theory.

Those who are enamored of practice without science are like a pilot who goes into a ship without rudder or compass and never has any certainty of where he is going. Practice should always be based upon a sound knowledge of theory.

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 greatest geniuses sometimes accomplish more when they work less.

M a k e yo u r s e l f a m a s t e r o f perspective, then acquire perfect knowledge of the proportions of men and other animals.

No human investigation can be called real science if it cannot be demonstrated mathematically.

Whoever in debate quotes authority uses not intellect, but memory.

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 know more about the movement of celestial bodies than about the soil underfoot.

Who sows virtue reaps honor.

Mechanics is the paradise of the mathematical sciences because by means of it one comes to the fruits of mathematics.

Mechanics is the paradise of the mathematical sciences because by means of it one comes to the fruits of mathematics.

If you find from your own experience that something is a fact and it contradicts what some authority has written down, 25 then you must abandon the authority and base your reasoning on your own findings.

If you find from your own experience that something is a fact and it contradicts what some authority has written down, 25 then you must abandon the authority and base your reasoning on your own findings.

Poor is the pupil who does not surpass his master.

Instrumental or mechanical science is the noblest and above all others, the most useful.

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.

Here is a thing which the more it is needed the more it is rejected: and this is advice, which is unwillingly heeded by those who most need it, that is to say, by the ignorant.

If you do not rest on the good foundation of nature, you will labour with little honor and less profit.

Envy wounds with false accusations, that is with detraction, a thing which scares virtue.

Painting is concerned with all the 10 attributes of sight; which are: Darkness, Light, Solidity and Color, Form and Position, Distance and Propinquity, Motion and Rest.