Thinking rationally is often different from "positive thinking," in that it is a realistic assessment of the situation, with a view towards rectifying the problem if possible.

In fact most of what we call anxiety is overconcern about what someone thinks of you.

The goal of all life is to have a ball.

I'm one of the best-loved psychologists in the United States, but I'm also probably the most hated one.

I thought foolishly that Freudian psychoanalysis was deeper and more intensive than other, more directive forms of therapy, so I was trained in it and practiced it.

People and things do not upset us. Rather, we upset ourselves by believing that they can upset us.

You have only to exist as you do and to live your life as best you can.