This is one of my favorites:
The longer I live, the more I realize the impact of attitude on life. Attitude to me is more important than facts. It is more important than the past, than education, than money, than circumstances, than failures, than success, than gift, or skill. It will make or break a company, a church, a home. The remarkable thing is we have a choice every day regarding the attitude we will embrace for that day. We cannot change our past we cannot change the fact that people will act in a certain way. We cannot change the inevitable. The only thing we can do is play on the string we have, and that is our attitude. I am convinced that life is 10 percent what happens to me and 90 percent how I react to it. And so it is with you, we are in charge of our attitudes.