A heresy can spring only from a system that is in full vigor.

Free men are aware of the imperfection inherent in human affairs, and they are willing to fight and die for that which is not perfect.

The Renaissance was a time of mercenary soldiers, ours is a time of mercenary labor.

The proselytizing fanatic strengthens his own faith by converting others. The creed whose legitimacy is most easily challenged is likely to develop the strongest proselytizing impulse.

The suspicious mind believes more than it doubts. It believes in a formidable and ineradicable evil lurking in every person.

The chemistry of dissatisfaction is as the chemistry of some marvelously potent tar. In it are the building stones of explosives, stimulants, poisons, opiates, perfumes and stenches.

The compulsion to take ourselves seriously is in inverse proportion to our creative capacity. When the creative flow dries up, all we have left is our importance.