Many of the cemeteries are beautiful, and are kept in perfect order. When one goes from the levee or the business streets [of New Orleans] to it, to a cemetery, he observes to himself that if those people down there would live as neatly while they are alive as they do after they are dead, they would find many advantages in it; and besides, their quarter would be the wonder and admiration of the business world.

Never tell the truth to people who are not worthy of it.

I wrote 'Tom Sawyer' and 'Huck Finn' for adults exclusively, and it always distressed me when I find that boys and girls have been allowed access to them. The mind that becomes soiled in youth can never again be washed clean.

In a museum in Havana, there are two skulls of Christopher Columbus, one when he was a boy and one when he was a man

The worst thing you can do to a man is to tell him he can have what he wants.

We all do no end of feeling, and we mistake it for thinking. And out of it we get an aggregation which we consider a boon. Its name is public opinion. It is held in reverence. Some think it the voice of God.

Fleas can be taught nearly anything a congressman can.