There is only one difference between an old man and a young one : the young man has a glorious future before him and old one has a splendid future behind him : and maybe that is where the rub is 老人和年轻人之间只有一个区别：年轻人的前面有辉煌的未来，老年人灿烂的未来在他身后，这可能就是摩擦之所在。
There is only one difference between an old man and a young one : the young man has a glorious future before him and old one has a splendid future behind him : and maybe that is where the rub is 老人和年轻人之间只有一个区别：年轻人的前面有辉煌的未来，老年人灿烂的未来却已在它们身后，这也许就是困难之所在。
