The most perfect ape cannot draw an ape; only man can do that; but, likewise, only man regards the ability to do this as a sign of superiority.

Erudition can produce foliage without bearing fruit.

Doubt everything at least once, even the sentence "Two times two is four."

What we have to discover for ourselves leaves behind in our mind a pathway that can be used on another occasion.

Much can be inferred about a man from his mistress: in her one beholds his weaknesses and his dreams.

It is said that truth comes from the mouths of fools and children: I wish every good mind which feels an inclination for satire would reflect that the finest satirist always has something of both in him.

The most entertaining surface on earth is the human face.