Naval: On some very deep level, all pleasure creates its own offsetting pain and fear of loss. I recently tweeted, “In an age of abundance, pursuing pleasure for its own sake creates addiction.” I was upgrading a Miyamoto Musashi line, “Do not seek pleasure for its own sake.” Musashi was a Japanese swordsman. In his time, pursuing pleasure meant a very different thing than it does today. He didn’t have unlimited processed food, Internet pornography, marijuana and alcohol available on demand. Now...