Custom has furnished the only basis which ethics have ever had.

Happiness is a kind of gratitude and vice versa.

If we are deprived of hope as well as fear, we are compensated by being given an almost endless patience for enduring or simply for waiting.

We have not merely escaped from something but into something... We have joined the greatest of all communities, which is not that of man alone but of everything which shares with us the great adventure of being alive.

Two-legged creatures we are supposed to love as we love ourselves. The four-legged, also, can come to seem pretty important. But six legs are too many from the human standpoint.

It is not a sentimental, but a grimly literal fact that unless we share this terrestrial globe with creatures other than ourselves, we shall not be able to live on it for long.

It is not ignorance but knowledge which is the mother of wonder.