The secret of living is to own a convertible and a lake...If the sun is shining, you can rid around in your convertible and be happy...If it starts to rain, it won't spoil your day because you can just say, 'Oh, well, the rain will fill up my lake!'"”
The only way to avoid being miserable is not to have enough leisure to wonder whether you are happy or not.
The best way to learn is to teach.