If a cat does something, we call it instinct; if we do the same thing, for the same reason, we call it intelligence.

It is because of his brain that he [modern man] has risen above the animals. Guess which animals he has risen above.

The Dodo never had a chance. He seems to have been invented for the sole purpose of becoming extinct and that was all he was good for.

The trouble with the dictionary is that you have to know how a word is spelled before you can look it up to see how it is spelled.

Just when you're beginning to think pretty well of people, you run across somebody who puts sugar on sliced tomatoes.

My philosophy of life can be summed up in four words: It can't be helped.

Aristotle taught that the brain exists merely to cool the blood and is not involved in the process of thinking. This is true only of certain persons.