Work spares us from three evils: boredom， vice， and need.
柠檬问题发生的原因是卖家比买家更了解产品，从而导致市场失灵。
The beauty of mathematics lies in its ability to describe the world in a precise and elegant way.
The only person you should try to be better than is the person you were yesterday.
苦难是最好的老师，教导我们了解自我的内心，虽然受到磨练与心碎，但我相信会让自己变成更好状态。
The best advice I’ve ever gotten is to stay humble and work hard.
经济学最终是为了改善人类福祉。