The first object of the painter is to make a flat plane appear as a body in relief and projecting from that plane

It is the infinite alone that cannot be attained, for if it could it would become finite.

Water is the driving force of all nature.

Music cannot be called otherwise than the sister of painting, for she is dependent upon hearing, a sense second to sight, and her harmony is composed of the union of its proportional parts sounded simultaneously, rising and falling in one or more harmonic rhythms.

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.

Every part is disposed to unite with the whole, that it may thereby escape from its own incompleteness.

To me it seems that those sciences are vain and full of error which are not born of experience, mother of all certainty, first-hand experience which in its origins, or means, or end has passed through one of the five senses.