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 travel from your town to a nearby town without a car, either by bus or by rail.

Email, instant messaging, and cell phones give us fabulous communication ability, but because we live and work in our own little worlds, that communication is totally disorganized.

Be able to suffer wearing a necktie or slightly high heels for an entire evening without complaint or early removal.

I believe that love--not imitation--is the sincerest form of flattery. Your imitator thinks that you can be duplicated; your lover knows you can't.

Many people feel they must multi-task because everybody else is multitasking, but this is partly because they are all interrupting each other so much.

Know how to drive safely when it's raining or when it's snowing. The two conditions are different.