A new idea comes suddenly and in a rather intuitive way. But intuition is nothing but the outcome of earlier intellectual experience.

Take up one idea. Make that one idea your life - think of it, dream of it, live on that idea. Let the brain, muscles, nerves, every part of your body, be full of that idea, and just leave every other idea alone. This is the way to success.

To have a great idea, have a lot of them.

The man with a new idea is a Crank until the idea succeeds.

I have far more respect for the person with a single idea who gets there than for the person with a thousand ideas who does nothing.

Take up an idea, devote yourself to it, struggle on in patience, and the sun will rise for you.