Learning is not compulsory... neither is survival.
学习不是强制性的...生存也不是。
The gritty individual approaches achievement as a marathon; his or her advantage is stamina.
The world perishes not from bandits and fires, but from hatred, hostility, and all these petty squabbles.
美国军人的八项素质，忠诚、责任、尊重、无私、服从、荣誉、正直，个人勇气。
到了我这个年纪的时候就会发现，衡量自己成功的标准就是有多少人在真正关心你、爱你。
Keep learning, keep growing.