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

Intellectualism' is the belief that our mind comes upon a world complete in itself, and has the duty of ascertaining its contents; but has no power of re-determining its character, for that is already given.

The deepest longing in the human breast is the desire for appreciation.

New habits can be launched.

Psychology saves us from mistakes. It makes us more clear as to what we are about. We gain confidence in respect to any method which we are using as soon as we believe that it has theory as well as practice at its back.

It is so human a book that I don't see how belief in its divine authority can survive the reading of it.

The greatest discovery of my generation is that a human being can alter his life by altering his attitudes.