There is only one difference between an old man and a young one: the young man has a glorious future before him and the old one has a splendid future behind him: and maybe that is where the rub is
老年人和青年人只有一个区别：青年人有光辉灿烂的前景，而老年人的辉煌已成为过去，问题的症结恐怕就在这里