Quotes on Over 50

There is a fountain of youth: it is your mind, your talents, the creativity you bring to your life and the lives of the people you love. When you learn to tap this source, you will truly have defeated age.

I have read a great deal of economic theory for over 50 years now, but have found only one economic "law" to which I can find NO exceptions: Where the State prevents a free market, by banning any form of goods or services, consumer demand will create a black market for those goods or services, at vastly higher prices. Can YOU think of a single exception to this law?