If facts, logic, and scientific procedures are all just arbitrarily "socially constructed" notions, then all that is left is consensus--more specifically peer consensus, the kind of consensus that matters to adolescents or to many among the intelligentsia.

免疫系统就像一把双刃剑；它可以对抗癌症，但也需要被控制。

追求知识是一生的旅程。