"Some people have felt that they could not consider seriously the possibility of reincarnation because they do not remember their past lives... If men are reborn, it would, as a matter of fact, be impossible to expect an entirely new body to retain and give expression to the details recorded by a different physical brain... The idea suggested by reincarnation is that the soul, not the brain, continues to live. And what is a "soul"? If the word has any meaning at all, it must stand for those unique qualities of character which distinguish us, far more than any physical differences, from our fellow human beings. And our most important qualities do not depend upon the memory of the brain. Our most important qualities are our attitudes of mind, formed through experience provided by brain, yet retained as moral instincts rather than as specific memories."