Know how and how much to tip people who expect gratuities, even in the case of poor service.

I've never found an interesting person with a foul mouth.

Although spoken English doesn't obey the rules of written language, a person who doesn't know the rules thoroughly is at a great disadvantage.

Know how weather, especially humidity, can affect the movement of doors and windows.

Know what happens when an individual declares bankruptcy and how it affects his or her life.

Feeling is what you get for thinking the way you do.

An act of justice closes the book on a misdeed; an act of vengeance writes one of its own