The irrational in the human has something about it altogether repulsive and terrible, as we see in the maniac, the miser, the drunkard or the ape.

Time is like an enterprising manager always bent on staging some new and surprising production, without knowing very well what it will be.

In unphilosophical minds any rare or unexpected thing excites wonder, while in philosophical minds the familiar excites wonder also.

Wisdom comes from disillusionment.

He thinks he believes only what he sees, but he is much better at believing than at seeing.

Friendship is almost always the union of a part of one mind with the part of another; people are friends in spots.

Familiarity breeds contempt only when it breeds inattention.