“If a man has lost a leg or an eye, he knows he has lost a leg or an eye; but if he has lost a self - himself - he cannot know it, because he is no longer there to know it.” - Oliver Sacks - Oliver Sacks was a British neurologist and writer who, before his passing in 2015, wrote several books about his psychiatric and neurological patients. Much of my fascination with his work began with another book of his, with an equally curious title, “An Anthropologist on Mars.”