Michael Johnson

The mind is absolutely instrumental in achieving results, even for athletes. Sports psychology is a very small part, but it's extremely important when you're winning and losing races by hundredths and even thousandths of a second.

If we live a self-directed, self-motivated, self-centered life, always needing to get our own way, then we're going to be miserable. In fact, many times we believe it's our problems that are making us unhappy when, in reality, it's because we're focused on ourselves!