Impressions arriving at the brain make it enter into activity, just as food falling into the stomach excites it to more abundant secretion of gastric juice. – Pierre Cabanis, translated from French

All sorts of bodily diseases are produced by half-used minds. – George Bernard Shaw

Every thought we have is a form of energy that continues to exist forever. – Pim van Lommel

The vacation we often need is freedom from our own mind. – Jack Adam Weber