If any organism fails to fulfill its potentialities, it becomes sick.

To kill time is not murder, it's suicide.

The worst thing that can happen to a good teacher is to get a bad conscience about her profession because she feels herself hopeless as a psychologist.

For the moment, what we attend to is reality.

Life is one long struggle between conclusions based on abstract ways of conceiving cases, and opposite conclusions prompted by our instinctive perception of them.

Mankind's common instinct for reality has always held the world to be essentially a theatre for heroism.

We are stereotyped creatures, imitators and copiers of our past selves.