Diplomacy is the ability to tell someone to "get lost" in such a way that they look forward to the trip.
Diplomacy is the art of letting someone else have your way.
Diplomacy is the art of saying "nice doggy" until you find a large enough rock.
Do not believe in miracles, rely on them.
Do someone a favor and it becomes your job.
Do whatever your enemies do not want you to do.
Doing a good job around here is like wetting your pants in a dark suit; you get a warm feeling, but nobody notices.
Don't be irreplaceable; if you cannot be replaced, you cannot be promoted.
Don't be so open minded that your brain falls out.