The stock market is filled with individuals who know the price of everything, but the value of nothing.
在一个资源匮乏的世界里,最有价值的资源不是石油或黄金,而是想象力。
我认为最重要的事情就是对你所拥有的心存感激。
For systems, the analogue of a face-lift is to add to the control graph an edge that creates a cycle, not just an additional node.