Nearly every man who develops an idea works it up to the point where it looks impossible, and then he gets discouraged. That's not the place to become discouraged.

Man, alone, has the power to transform his thoughts into physical reality; man, alone, can dream and make his dreams come true.

Let us permit nature to have her way. She understands her business better than we do.

You wouldn't believe the kind of hate mail I get about my work on irregular verbs.

He has all of the virtues I dislike and none of the vices I admire.