"You know what that reflects?" Unsatisfied lives. Unfufilled lives. Lives that haven't found meaning. Because if you found meaning in your life, you don't want to go back. You want to go forward. You want to see more, do more. You can't wait until sixty-five.
— Tuedays with Morrie.
ps：每天学习都会有进步、有收获，只是，年纪大了，东西总是忘，并且，学习，真的好像自己一个人在黑屋子里，听不到声音、看不到光亮，自己想凿穿无尽的黑暗，却不知道自己能否能坚持到墙破的那一刻，抑或，自己也不知道自己凿的地方是否会有光明，悲！但，真的猛士，敢于面对这种绝望和挫折，擦干身上的血汗，继续前行！
