If your head tells you one thing, and your heart tells you another, before you do anything, you should first decide whether you have a better head or a better heart.

Play more than one game at a time. This is a painless way to learn how to do many things at once.

Experts say you can't concentrate on more than one task at a time.

Be able to meet any deadline, even if your work is done less well than it would be if you had all the time you would have preferred.

Profit is what we have left after we make a donation to a worthwhile cause.

I believe that one becomes stronger emotionally by taking life less personally. If your employer criticizes your report, don't take it personally. Instead, find out what's needed and fix it. If your girlfriend laughs at your tie, don't take it personally. Find another tie or find another girlfriend.

Think of a hypothesis as a card. A theory is a house made of hypotheses.