If you spend too much time thinking about a thing, you'll never get it done.

Knowing is not enough, you must apply; willing is not enough, you must do.

If you want to do your duty properly, you should do just a little more than that.

Twenty years from now you will be more disappointed by the things that you didn't do than by the ones you did do. So throw off the bowlines. Sail away from the safe harbor. Catch the trade winds in your sails. Explore. Dream. Discover.

It was a high counsel that I once heard given to a young person, — "Always do what you are afraid to do."

If it is known exactly what is going to be done, why do it?

I can't stop, mate. I'm on fire. I wake up in the morning and I'm on fire. I just can't do enough. It drives me crazy that I've got to go to sleep; you know, can't I film something at night?