We have all learned everything we know physically—from walking to running a marathon—by trial and error, so there's no reason to become our own worst enemies when we suffer a setback. From time to time everyone falls short of their goals. It's an illusion to believe that champions succeed because they do everything perfectly. You can be certain that every archer who hits the bull's-eye has also missed the bull's-eye a thousand times while learning the skill.

You have to want it, you have to plan for it, you have to fit it into a busy day, you have to be mentally tough, you have to use others to help you. The hard part isn't getting your body in shape. The hard part is getting your mind in shape.

If you train your mind for running, everything else will be easy.

Don't get discouraged. As far as I'm concerned, a positive attitude is the most important attribute any runner can have. You'll need it often. Every runner has bad days, every runner has occasional injuries, and every runner eventually slows down (take it from someone who has slowed down a lot). But as long as you maintain a positive attitude, you'll find ways to overcome the obstacles and continue running. After all, running offers countless rewards. It's simply up to you to find the ones that have the most meaning for you.

Don't judge your running by your speed.

I always tell beginning runners: Train your brain first. It's much more important than your heart or legs.

Set a goal and a program for yourself, and everything else will follow. Guaranteed.