When I was young, I observed that nine out of 10 things I did were failures, so I did 10 times more work.

George Bernard Shaw

If you can find a path with no obstacles, it probably doesn't lead anywhere.

Frank A. Clark

Do not wait; the time will never be just right. Start where you stand, and work with whatever tools you may have at your command, and better tools will be found as you go along.

Napoleon Hill