The universe, as far as we can observe it, is a wonderful and immense engine.... If we dramatize its life and conceive its spirit, we are filled with wonder, terror and amusement, so magnificent is the spirit.

The young man who has not wept is a savage, and the older man who will not laugh is a fool.

I like to walk about amidst the beautiful things that adorn the world.

Memory itself is an internal rumour.

Real unselfishness consists in sharing the interests of others.

It is wisdom to believe the heart.

Beware of long arguments and long beards.