You have to be willing to be alone to be a writer.
The loneliest moment in someone's life is when they are watching their whole world fall apart, and all they can do is stare blankly.
The beauty of mathematics is that it is one of the few areas of human endeavor where absolute truth can be known.
When a child asks an endless string of “why?” questions, the smartest reply is, “I don’t know, what do you think?”