The longer we dwell on our misfortunes, the greater is their power to harm us.

I don't know if you ever really feel like you've made it.

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.

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