Science is a way of thinking much more than it is a body of knowledge.

Probably a dozen times since their death I've heard my mother or father, in an ordinary conversational tone of voice, call my name. They had called my name often during my life with them ... It doesn't seem strange to me.

The way to find out about our place in the universe is by examining the universe and by examining ourselves - without preconceptions, with as unbiased a mind as we can muster.

My wonder button is being pushed all the time.

An organism at war with itself is doomed.

Both the Freudian and the Platonic metaphors emphasize the considerable independence of and tension among the constituent parts of the psyche, a point that characterizes the human condition.

Human beings have a demonstrated talent for self-deception when their emotions are stirred.