"Philosophy" by tgkuohttp://trailfire.com/tgkuo/trails/52775tgkuo/trails60An Essay by Einstein -- The World As I See Ithttp://trailfire.com/tgkuo/marks/179695PhilosophytgkuoMon, 03 Dec 2007 01:12:07 -0800trailfire:markId:179695Quotations on Geniushttp://trailfire.com/tgkuo/marks/179700PhilosophytgkuoMon, 03 Dec 2007 01:29:34 -0800trailfire:markId:179700Goodreads | quotes tagged as 'life'http://trailfire.com/tgkuo/marks/248573PhilosophytgkuoTue, 28 Oct 2008 06:42:08 -0700trailfire:markId:248573An Examined Life | Peterman's Eyehttp://trailfire.com/tgkuo/marks/257405PhilosophytgkuoWed, 10 Dec 2008 01:26:35 -0800trailfire:markId:257405