When I am through learning, I am through.
You never fail if you know in your heart that you did the best of which you are capable.
You can always do more than you think you can.
When you are through learning you are through.
I don't believe in looking back. If you make a decision that you think is the proper one at a time, then that's the correct decision.
The greatest ally you have to get things working well and the players performing as a team is the bench. Don't be afraid to use it, either for the star player or anyone else.