Know why certain foods, such as truffles, are expensive. It's not because they taste best.

Be able to hiccup silently, or at least without alerting neighbors to your situation. The first hiccup is an exception.

Be sure to expose yourself to criticism: A fine polish requires an abrasive.

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

Avoid using cigarettes, alcohol, and drugs as alternatives to being an interesting person.

Skill is successfully walking a tightrope between the twin towers of New York's World Trade Center. Intelligence is not trying.

Be able to describe anything visual, such as a street scene, in words that convey your meaning.