to rest one's case on faith means to concede that reason is on the side of one's enemies- that one has no rational arguments to offer.

Their eyes were dark and hard and glowing, with no fear in them, no kindness and no guilt.

The difference between animals and humans is that animals change themselves for the environment, but humans change the environment for themselves.

Because, you see, God - whatever anyone chooses to call God - is one's highest conception of the highest possible. And whoever places his highest conception above his own possibility thinks very little of himself and his life. It's a rare gift, you know, to feel reverence for your own life and to want the best, the greatest, the highest possible, here, now, for your very own. To imagine a heaven and then not to dream of it, but to demand it.

Do not let your fire go out, spark by irreplaceable spark in the hopeless swamps of the not-quite, the not-yet, and the not-at-all. Do not let the hero in your soul perish in lonely frustration for the life you deserved and have never been able to reach. The world you desire can be won. It exists.. it is real.. it is possible.. it's yours.

No matter how vast your knowledge or how modest, it is your own mind that has to acquire it. It is only with your own knowledge that you can deal. It is only your own knowledge that you can claim to possess or ask others to consider. Your mind is your only judge of truth - and if others dissent from your verdict, reality is the court of final appeal. Nothing but a man's mind can perform that complex, delicate, crucial process of identification which is thinking. Nothing can direct the process but his own judgment. Nothing can direct his judgment but his moral integrity.

Integrity is the ability to stand by an idea.