The poor dream all their lives of getting enough to eat and looking like the rich. And what do the rich dream of? Losing weight and looking like the poor.

The writer’s duty is to tell the truth, even when it is uncomfortable.

验证不仅仅是发现错误；它关乎理解系统为何以某种方式工作。

有钱人说真话有人相信，贫穷人说话别人怀疑不相信。