A retentive memory may be a good thing, but the ability to forget is the true token of greatness.

Morality is largely a matter of geography.

Optimism is a kind of heart stimulant-the digitalis of failure.

Life is a paradox. Every truth has its counterpart which contradicts it; and every philosopher supplies the logic for his own undoing.

Let a man once see himself as others see him, and all enthusiasm vanishes from his heart.

Be yourself and think for yourself; and while your conclusions may not be infallible they will be nearer right than the conclusions forced upon you by those who have a personal interest in keeping you in ignorance.

Meanness is more in half-doing than in omitting acts of generosity.

Strength and strength's will are the supreme ethic. All else are dreams from hospital beds, the sly, crawling goodness of sneaking souls.

God will not look you over for medals, degrees or diplomas, but for scars!

The supernatural is the natural not yet understood.