Now, notice that since we are adding extra positive facts, extra positive points, for the fact that you're alive, even if the contents subtotal is negative, the grand total could still be positive.

由于我们添加了额外的积极事物，额外的正数，因为你活着，就算生活内容的部分总和是负数，但它的总和可能仍然是正数。

耶鲁公开课 - 死亡课程节选