In 1953, Albert Schweitzer won the Nobel Prize for peace, and magazines and newspaper articles were calling him "the greatest man in the world." He was one of the most unlikely candidates for such accolades -- having spent the majority of his life working as a doctor, tending to the poor in a remote corner of Africa. In addition to being a doctor, Schweitzer was a concert organist and a respected theologian, but it was for uncovering a simple philosophy that he won the Nobel Prize. He called his way of thinking and living "Reverence for Life."