An idea that is developed and put into action is more important than an idea that exists only as an idea.

The exercise of an extraordinary gift is the supremest pleasure in life.

I have a great need for Christ: I have a great Christ for my need.

Nobody can do everything, but everybody can do something.

Courage is the first of human qualities because it is the quality that guarantees all others.

I'm sure the universe is full of intelligent life. It's just been too intelligent to come here.

I never thought of myself as a genius; I was just a curious person.