Reasonable men adapt themselves to their environment; unreasonable men try to adapt their environment to themselves. Thus all progress is the result of the efforts of unreasonable men.

You sometimes have to answer a woman according to her womanliness, just as you have to answer a fool according to his folly.

Though the Life Force supplies us with its own purpose, it has no other brains to work with than those it has painfully and imperfectly evolved in our heads.

When a man wants to murder a tiger he calls it sport; when a tiger wants to murder him he calls it ferocity.

There are no secrets better kept than the secrets everybody guesses.

Pasteboard pies and paper flowers are being banished from the stage by the growth of that power of accurate observation which is commonly called cynicism by those who have not got it...

Beware of false knowledge; it is more dangerous than ignorance.