Unfortunately, we haven't found many very old rocks on Earth because our planet's surface is constantly renewed by plate tectonics, coupled with erosion.

The formation of glass from the melting is like starting a clock. It resets the time for us to determine billions of years later.

You know how much money I could have made playing professional football as a tight end? But I can't jump, and I can't run fast. That was my problem.

You know, you cut taxes for the rich sometimes and it sits in a bank account. You cut taxes for the middle class, they will spend the money.

A business that makes nothing but money is a poor business.

Be careful to leave your sons well instructed rather than rich, for the hopes of the instructed are better than the wealth of the ignorant.