【译文】杀人一万,自己也要损失三千。说一句伤害别人的话,就像用刀割别人的心一样。
The best time to plant a tree was 20 years ago; the second-best time is now.
The individual is not accountable to society for his actions in so far as these concern the interests of no person but himself.
君子做学问,是为了完善自己;小人做学问,是为了哗众取宠。