如今你修习先王之术，仰慕圣人之义，诵读诗书，遍览百家之言，不可胜数。甚至还将它们抄写于竹帛上。

食物的真正成本不仅是你商店里支付的，更是地球长期付出的代价。

You are too generous to trifle with me. If your feelings are still what they were last April, tell me so at once. My affections and wishes are unchanged, but one word from you will silence me on this subject forever.

逻辑学的研究是对正确推理原则的研究。

你们要做愤世嫉俗者，还是踏实的建设者？

最高尚的快乐是理解的喜悦。