The person who tries to live alone will not succeed as a human being. His heart withers if it does not answer another heart. His mind shrinks away if he hears only the echoes of his own thoughts and finds no other inspiration.

"The most dangerous phrase in business is 'We've always done it this way.'"

The beauty of mathematics is that it is a language that can describe the universe in a way that nothing else can.

一般来说，嫉妒、怨恨和自怜都是灾难性的思想模式。自怨自艾与偏执狂相当接近，而偏执狂是最难扭转的。