工程事业，必学术经验相辅而行，徒恃空谈，断难任事。
工程事业必须学术和经验相辅相成，仅靠空谈绝对难以胜任。
"A key insight in computational learning theory is that the complexity of a learning problem is determined by the complexity of the hypothesis space and the amount of data available."
我们都只是路过，像雪地上的脚印一样留下自己的痕迹。