Quotes from Ray Bradbury:
Living at risk is jumping off the cliff and building your wings on the way down.
He also later (earlier?) stated this another way. I suspect he said this quite often, actually.
Jump, and you will find out how to unfold your wings as you fall.
I've also heard this --
Jump and build your wings on the way down.
Thinking is the enemy of creativity. It's self-conscious, and anything self-conscious is lousy. You can't try to do things. You simply must do things.
In my later years, I have looked in the mirror each day and found a happy person staring back.
Occasionally I wonder why I can be so happy. The answer is that every day of my life I've worked only for myself and for the joy that comes from writing and creating. The image in my mirror is not optimistic, but the result of optimal behavior.