Genius is the ability to see things invisible, to manipulate things intangible, to paint things that have no features

A thought is a thing as real as a cannonball.

Never write anything that does not give you great pleasure. Emotion is easily transferred from the writer to the reader.

Whence? wither? why? how? - these questions cover all philosophy.

I quit Paris unwillingly, because I must part from my friends; and I quit the country unwillingly, because I must part from myself.

The early and the latter part of human life are the best, or, at least, the most worthy of respect; the one as the age of innocence, the other of reason.

Politeness is the flower of humanity.