全球化不是选择题，而是必答题，中国企业必须走出去。

"To write is to remember, and to remember is to live twice."

In investing, you get what you don’t pay for.

生命短暂，让它变得甜蜜取决于你。

In the context of computational learning, the concept of 'probably approximately correct' (PAC) learning provides a framework for understanding the efficiency and feasibility of learning algorithms.