A billion dollars isn't what it used to be.

People who know how much they're worth aren't usually worth that much.

It's more important to know your weaknesses than your strengths.

The people of the United States don't recognize it, but the oil industry has given the greatest gift to the people of the nation, and that gift is the low cost of energy. Bottom line is this enables the country to be very competitive manufacturing-wise and in the world economy.