理解计算的极限与扩展其能力同样重要。
"Understanding the limits of computation is as important as expanding its capabilities."
What we do may be small, but it has a huge impact.
生命周期假说认为，个人会在一生中规划其消费和储蓄行为。
沉默就是同谋，而我拒绝沉默。
能关爱自己国内的老百姓，才能让国外不友好的势力臣服。
最大的风险就是不冒险。