Courage is a virtue necessary not only in war, but in life as well.
勇敢是一种德行,不仅在战斗中,在生活中的各个方面都需要勇敢。
Happiness is that state of consciousness which proceeds from the achievement of one's values.
The power of abstraction is that it allows us to reason about systems at a higher level, without getting bogged down in the details.
最好的市场设计是那些能减少参与者不确定性的设计。