Wealth is the product of energy times intelligence: energy turned into artifacts that advantage human life.

You cannot question an assumption you do not know you have made.

The nearest each of us can come to God is by loving the truth.

Parents are usually more careful to bestow knowledge on their children rather than virtue, the art of speaking well rather than doing well; but their manners should be of the greatest concern.

Don't attempt to reform man. An adequately organized environment will permit humanity's original, innate capabilities to become successful.

Nature is all that we think we know plus all that we don't know whether or not we know that we don't know it.

I'm not trying to counsel any of you to do anything really special except dare to think. And to dare to go with the truth. And to dare to really love completely.