You never fail if you know in your heart that you did the best of which you are capable. I did my best. That is all I could do. Are you going to make mistakes? Of course. But it is not failure if you make the full effort.

A mistake is valuable if you do four things with it: recognize it, admit it, learn from it, forget it

Everything we know, we learned from someone else!

Never confuse activity with accomplishment.

There are no big things, only a logical accumulation of little things done at a very high standard of performance.

You can always do more than you think you can.

Never be thrown off stride in how you behave or what you believe in because of outside events.