We have three criteria. If it’s publicly traded， liquid and amenable to modeling， we trade it.
The best way to predict the future is to create it.
——〈在广州岭南学堂的演说〉，1912年5月7日
Why does a person own a dog?”“For security, I guess...For the security of knowing that there's at least one creature in the world who likes you.
The beauty of computational complexity lies in its ability to classify problems based on their inherent difficulty.
人工智能是一段旅程，而不是一个目的地。
【讲解】：孝敬父母，尊敬长辈是做人的根本。
Perhaps as important is the relation between the existence of solutions to a competitive equilibrium and the problems of normative or welfare economics.