When you make a mistake or get ridiculed or rejected, look at mistakes as learning experiences, and ridicule as ignorance. Look at rejection as part of one performance, not as a turn down of the performer.
Unless what you say benefits the other person, don't say it.
Winning is all in the attitude!
The ability to adapt is everything!
Contentment is for cows; a challenging purpose is for people.
The only limits on human achievement are self-imposed.