The bigger they are, the harder they hit. Don't tell everything you know. Nothing is so simple that it can't be screwed up. Join the army, meet interesting people, and kill them. A man who smiles when things go wrong knows who to blame.
Talk is cheap because supply exceeds demand.
Never hit a man when he's down. He may get back up again. Behind every successful man stands a woman waiting for his job. The Earth is like a grain of sand, only bigger. If a problem has a single neck, it has a simple solution.