<![endif] Google Tag Manager Container End Google Tag Manager Container Log In / Sign Up Health Care Culture Policy & Politics World Business & Finance Technology Science & Health Identities Energy & Environment Explainers Video Features Log In / Sign Up Google CSE Search Box Begins Use of this code assumes agreement with the Google Custom Search Terms of Service. The terms of service are available at https://www.google.com/cse/docs/tos.html Google CSE Search Box Ends Updated by Amanda MacAskill on February 4, 2015, 7:30 a.m. ET Tweet Share Tweet Share on Twitter Share Share on Facebook + LinkedIn Share on LinkedIn Email Email Print Print John William Waterhouse's <i>Sleep and his Half Brother Death</i>. We are often warned...