The profound study of nature is the most fertile source of mathematical discovery.

Mathematics compares the most diverse phenomena and discovers the secret analogies that unite them.

Mathematical Analysis is as extensive as nature herself.

Sometimes I think I've figured out some order in the universe, but then I find myself in Florida, swamped by incongruity and paradox, and I have to start all over again.

Sometimes, even the very best course of action fails.

A mule has neither pride of ancestry nor hope of posterity.

Our words reveal our heart, our actions reveal our soul.

We've gone from looking up at the moon to looking down at Instagram.

If you can manage to experience three positive emotions for every one negative emotion … you dramatically improve your health and your ability to successfully tackle any problem you're facing.

Once the game begins, I play to that song in my head. I run to rhythm, and that allows my mind to be free.

Hatred and bitterness can never cure the disease of fear; only love can do that. Hatred paralyzes life; love harmonies it. Hatred darkens life; love illuminates it.

The windfall of great riches can, if mismanaged, make things worse, not better, for the recipients.

A man may take care of a furnace for twenty-five years and still forget to duck his head when he starts going down the cellar stairs.