There is no true liberty without the liberty of thought.
To write a good love letter, you ought to begin without knowing what you mean to say, and to finish without knowing what you have written.
语言中最危险的短语是:“我们一直都是这么做的。”
如果我们想养活世界,就必须投资于更智能的畜牧方式。
保持对知识的渴望,你将永远不会缺乏机会。
办丧事虽有一定的礼仪,但还是以哀痛为本。