False opinions are like false money, struck first of all by guilty men and thereafter circulated by honest people who perpetuate the crime without knowing what they are doing.

Women have a genius for love; men can only learn the art indifferently.

To know how to wait. It is the great secret of success.

There is no easy method of learning difficult things. The method is to close the door, give out that you are not at home, and work.

It is one of man's curious idiosyncrasies to create difficulties for the pleasure of resolving them.

Man's destructive hand spares nothing that lives; he kills to feed himself, he kills to clothe himself, he kills to adorn himself, he kills to attack, he kills to defend himself, he kills to instruct himself, he kills to amuse himself, he kills for the sake of killing.

I don't know what a scoundrel is like, but I know what a respectable man is like, and it's enough to make one's flesh creep.