Never underestimate the power of collaboration—great things are rarely achieved alone.
解释：割地给秦国（来求得暂时的安稳），就好像抱着木柴救火一样，木柴烧不不完，火就不会灭。
自由的概念与真理的概念不可分割。
The greatest threat to democracy is not from external enemies but from internal decay and the loss of civic virtue.
人心容易偏离正道，道心微妙难明，只有精研专一，才能持守中道。