When a man sits with a pretty girl for an hour, it seems like a minute. But let him sit on a hot stove for a minute, and it's longer than any hour. That's relativity.
He that doesn't want to work, neither let him eat.
Be true to your teeth and they won't be false to you.
A little kindness from person to person is better than a vast love for all humankind.
Most people will not recognize opportunity because it is dressed in overalls and looks like work.
Twenty years from now you will be more disappointed by the things you didn't do than by the ones you did. So throw off the bowlines, Sail away from the safe harbor. Catch the trade winds in your sails. Explore. Dream.
You live and learn. At any rate, you live.
A clean desk is a sign of an empty mind.
Wisdom begins in wonder.
You can tell whether a man is clever by his answers. You can tell whether a man is wise by his questions.