Experience is something you don't get until just after you need it. For every action there is an equal and opposite criticism. Bills travel through the mail at twice the speed of checks. Never do card tricks for the group you play poker with. No one is listening until you make a mistake.
Success always occurs in private and failure in full view.
The colder the x-ray table the more of your body is required on it. The hardness of butter is directly proportional to the softness of the bread. The severity of the itch is inversely proportional to the ability to reach it. To succeed in politics, it is often necessary to rise above your principles. You never really learn to swear until you learn to drive.