The difference between talking on your cell phone while driving and speaking with a passenger is huge. The person on the other end of the cell phone is chattering away, oblivious.

The only real meaning in life can be found in a good man. And maybe Paris. Preferably the two together.

Be able to decline a date so gracefully that the person isn't embarrassed that he or she asked.

Geometry is beautifully logical, and it teaches you how to think and prove that things are so, step by step by step. Proofs are excellent lessons in reasoning. Without logic and reasoning, you are dependent on jumping to conclusions or - worse - having empty opinions.

Know how to behave at a fine restaurant, which is a telltale measure of social maturity.

One of the few articles of clothing that a man won't try to remove from a woman is an apron.

Understand why casinos and racetracks stay in business - the gambler always loses over the long term.