Young normal tigers do not eat people. If eaten by a tiger you may rest assured he was abnormal.

Let's not be too quick to blame the human race for everything. A great many species of animals became extinct before man ever appeared on earth.

Galvani was mistaken about the amount of electricity in frogs, but he had some good ideas, too, for the galvanometer is named in his honor, and you don't have galvanometers named after you merely for making a mistake about a frog.

The sloth lives his life upside down. He is perfectly comfortable that way. If the blood rushes to his head, nothing happens because there is nothing to work on.

The Earthworm plows the whole world with his tunnels, drains and aerates the earth… If you ever buy any land, be sure it has plenty of Earthworms toiling and moiling all day so that you can sit down and relax.

We all make mistakes, but intelligence enables us to do it on purpose.

I do not travel. I am not much of an extrovert, and I'm not much interested in extroverted objects. I do not care for the 'ideas' of novelists. Novels are wonderful, of course, but I prefer newspapers.