The advancement of mathematics is through generalization.
才能不足的人计谋多,见识不够的人事情多,威仪不足则使人怨怒多,诚信不够则言语多,勇气不足则辛劳多,明细不够则多察查,事理不足则多辩论,情分不够则多礼仪。
We must remember that in nature there are neither rewards nor punishments—there are consequences.