我们无法改变过去,但我们可以改变对过去的看法。
The relationship between wages and employment is not as straightforward as some models suggest.
老年人相信每一件事物;中年人猜疑每一件事物;青年人什么都懂。
真正的创新解决实际问题,而不仅仅是创造新奇。