You'll never make a good impression on other people until you stop thinking what sort of impression you make.

Man's conquest of Nature turns out, in the moment of its consummation, to be Nature's conquest of Man.

I thought I could describe a state; make a map of sorrow. Sorrow, hoever, turns out to be not a state but a process.

For most of us the prayer in Gethsemane is the only model. Removing mountains can wait.

You never know how much you really believe anything until its truth of falsehood becomes a matter of life and death to you. It is easy to say you believe a rope to be strong and sound as long as you are merely using it to cord a box. But suppose you had to hang by that rope over a precipice. Wouldn't you then first discover how much you really trusted it?

He (the devil) always sends errors into the world in pairs--pairs of opposites...He relies on your extra dislike of one to draw you gradually into the opposite one. But do not let us be fooled. We have to keep our eyes on the goal and go straight through between both errors. We have no other concern than that with either of them.

Don't say it was delightful; make us say delightful when we've read the description. You see, all those words (horrifying, wonderful, hideous, exquisite) are only like saying to your readers Please will you do the job for me.