The great advantage of old age is that you can be as rude as you like.
处于逆境中,就好比周身都扎着针、敷着药;冥冥中却能磨炼人的意志、培养高尚的品行。处于顺境中,就好比被各种各样的兵器包围;冥冥中掏空了身体,消磨了向上进取的意志。
Look up at the stars and not down at your feet. Try to make sense of what you see, and wonder about what makes the universe exist. Be curious.