Innovation is not about technology, it's about solving real problems.
没有执行的愿景只是一个梦想。
The beauty of instrumental variables is that they allow us to see the world in a new light.
孔子说,真正的知识是知道自己无知的程度。亚里士多德和苏格拉底也说过同样的话。这是一种可以传授或学习的技能吗?也许可以,只要你对结果有足够的兴趣......