The psychologist must be a dispassionate observer.

"The past is not dead; it is not even past."

If you have a good idea, and if you do it right, it will just go.

Psychology is a science, and teaching is an art; and sciences never generate arts directly out of themselves.

The only way to make sense out of change is to plunge into it, move with it, and join the dance.

To live is the rarest thing in the world. Most people exist, that is all.