You're never too old to become younger. It is slavery to live in the mind unless it has become part of the body. Be nice to people on the way up. They're the same people you'll pass on the way down. The impossible is often the untried.
Life is either a daring adventure or nothing.
We learn the rope of life by untying its knots. Nothing great in the world has been accomplished without passion. There is no substitute for hard work. It is the Supreme art of the teacher to awaken joy in creative expression and knowledge. Good friends are good for your health.