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

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.

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

My thoughts are like waffles - the first few don't look so good.

Spending waiting moments doing crossword puzzles or reading a book you brought yourself.

Know where to find the sunrise and sunset times and note how the sky looks at those times, at least once.

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