Never eat more than you can lift.
Difficulties are meant to rouse, not discourage. The human spirit is to grow strong by conflict.
For the most part, fear is nothing but an illusion. When you share it with someone else, it tends to disappear.
You don't stop laughing because you grow old. You grow old because you stop laughing.
A billion here, a billion there, pretty soon it adds up to real money.
It's very hard to take yourself too seriously when you look at the world from outer space.
The greatest thing in the world is to know how to belong to oneself.