对过去的反思是未来的智慧之源。

To understand behavior, we must look at its purpose in the context of survival and adaptation.

The novel is a rebellion against the limits of reality.

故事的力量在于它能够将我们彼此连接起来。

当且仅当所有投资者都持有均值-方差有效的投资组合时，市场组合才是有效的。