"Miles make champions."
"You should race when you're ready. Don't go out there and make a fool out of yourself."
"If you can't make it 20 miles, you're going too fast."
"Your aerobic development is a gradual thing. It takes years and years of marathon-type training to develop your aerobic capacity to the fullest."
"The only way to build ability is to increase aerobic capacity. Many people try to improve their anaerobic capacity, which is beyond the capability of the human body. The only way to improve is to lift the aerobic base. Most people will still be developing aerobic capacity 10 years after they start running, whatever age they start. So if you start at 40, you will still be developing the cardiovascular system 10 years later."