When there is no enemy within, the enemies outside cannothurt you.

There isno squabbling so violent as that between people who accepted an ideayesterday and those who will accept the same idea tomorrow.

Nostrength within, no respect without.

It'snot the will to win, but the will to prepare to win that makes thedifference.

Speak whenyou are angry and you will make the best speech you will ever regret.

Reasonand emotion are not antagonists. What seems like a struggle between twoopposing ideas or values, one of which, automatic and unconscious, manifestsitself in the form of a feeling.

In history, characters and events occur twice, first as tragedy then as farce.

Sciencecannot resolve moral conflicts, but it can help to more accurately frame thedebates about those conflicts.

Enthusiasm is faith set on fire.

The greatest job of teachers is to cultivate talent until it ripens for the public to reap its bounty.

Whenyou plant lettuce, if it does not grow well, you don't blame the lettuce. Youlook for reasons it is not doing well. It may need fertilizer, or more water,or less sun. You never blame the lettuce. Yet if we have problems with ourfriends or our family,

Theconventional view serves to protect us from the painful job of thinking.