Life doesn't come with an instruction book; that's why we have fathers.
Spend your time and energy creating, not criticizing.
Make allowances for your friends' imperfections as readily as you do for your own.
Don't do business with anyone who has a history of suing people.
Perform your job better than anyone else can. That's the best job security I know.
Don't be called out on strikes. Go down swinging.