Art lives from constraints and dies from freedom.

Marriage is like putting your hand into a bag of snakes in the hope of pulling out an eel.

Those who become enamoured of the art, without having previously applied to the diligent study of the scientific part of it, may be compared to mariners who put to the sea in a ship without rudder or compass and therefore cannot be certain of arriving at the wished for port.

What is fair in men, passes away, but not so in art

Truth was always but the daughter of time.

Strive to preserve your health; and in this you will better succeed in proportion as you keep clear of the physicians, for their drugs are a kind of alchemy concerning which there are no fewer books than there are medicines.

Shadow is the diminution alike of light and of darkness, and stands between darkness and light.