灵魂被放置在身体中，就像一颗粗糙的钻石，必须经过打磨，否则它的光泽永远不会显现。
The soul is placed in the body like a rough diamond, and must be polished, or the luster of it will never appear.
The best way to learn a new programming language is by writing programs in it.
【译文】 颜渊问仁。孔子说：“用坚强的意志、顽强的拼搏精神，主持正义、捍卫道德、维护和平，这就是仁。一旦做到了这一点，普天下的人都会崇敬你、追随你、向你学习。为崇高理想而奋斗要靠的是自己，难道还能靠别人吗？”颜渊说：“请问其详？”孔子说：“违反礼法的事不要看、不要听、不要说、不要做。”颜渊说：“我虽不才，愿照此办理。”
The best way to predict the future is to create it.
The past is a foreign country; they do things differently there.
Incentives matter because they guide behavior in predictable ways.