To get a great idea, come up with lots of them.

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.

If you have a really good idea, stick to it, but be flexible on how you get there. Be stubborn on your vision but flexible on the details... People who are right a lot change their mind... They have the same data set that they had at the beginning, but they wake up, and they re-analyze things all the time, and they come to a new conclusion, and then they change their mind.

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.

It's perfectly healthy-encouraged, even to have an idea tomorrow that contradicted your idea today.

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