If you have no destination, you'll never get there.
A string of successes can kill you if they make you think, 'Hey, I'm smart; I can't make any mistakes'.
I know that you don't know, but you don't know that you don't know.
If you walk backwards, you will never stub your toe.
Good intentions aren't enough. People have good intentions when they set a goal to do something, but then they miss a deadline or other milestone.
Amateurs wait for inspiration. The real pros get up and go to work.