The heart of animals is the foundation of their life, the sovereign of everything within them.

You have to be passionate about what you do, or you'll never succeed.

The greatest glory in living lies not in never falling, but in rising every time we fall.

Acquiring things will rarely bring you deep satisfaction. But acquiring experiences will.

The Internet is the most important single development in the history of human communication since the invention of the printing press.

The cognitive map is not a picture or a model in the head, but a dynamic, changing representation of the environment.

"Writing is a way of saying 'I exist.'"