Maturity Is The Ability To Postpone Gratification.

The Psychical, Whatever Its Nature May Be, Is Itself Unconscious.

The Psychoanalysis Of Neurotics Has Taught Us To Recognize The Intimate Connection Between Wetting The Bed And The Character Trait Of Ambition.

Pathology Has Made Us Acquainted With A Great Number Of States In Which The Boundary Lines Between The Ego And The External World Become Uncertain Or In Which They Are Actually Drawn Incorrectly. There Are Cases In Which Parts Of A Person's Own Body, Even Portions Of His Own Mental Life - His Perceptions, Thoughts And Feelings -, Appear Alien To Him And As Not Belonging To His Ego; There Are Other Cases In Which He Ascribes To The External World Things That Clearly Originate In His Own Ego And That Ought To Be Acknowledged By It.

[the Child] Takes His Play Very Seriously And He Expends Large Amounts Of Emotion On It. The Opposite Of Play Is Not What Is Serious But What Is Real.

Beauty Has No Obvious Use; Nor Is There Any Clear Cultural Necessity For It. Yet Civilization Could Not Do Without It.