Obstacles are those frightful things you see when you take your eyes off your goal.
There is joy in work. There is no happiness except in the realization that we have accomplished something.
Exercise is bunk. If you are healthy, you don't need it, if you are sick you should not take it.
One of the great discoveries a man makes, one of his great surprises, is to find that he can do what he was afraid he couldn’t do.