I sliced my orange in half, releasing a fresh citrus scent, and was delighted by the gorgeous purply red colour inside. I took a closer look at the segments hidden inside the thick-skinned citrus. They were bursting with juice. Before eating the orange, I paraded it around my house to show the beautiful colour to my family (they weren’t quite as delighted as I). A small pleasure in a small thing. Perhaps this is the type of observation that Sei Shōnagon might have recorded in The Pillow Book. I recently learned about this Japanese author/poet/philosopher in Eric Weiner’s book, The Socrates Express: In Search of Life Lessons from Dead Philosophers.…