On the one hand, the optimists might say, "Even when we throw in the extra interaction effects, even the negative interaction effects, the overall nature of the human condition is positive.

一方面，乐观主义者可能说，“就算我们把另外的相互影响，就算把负面的相互影响算进去，人类处境的总体本质还是积极的。

耶鲁公开课 - 死亡课程节选