Just as there was a point in your development as a child when your sense of self and of time became sophisticated enough for you to realize you were mortal, so at some point in the evolution of our species, some early human's sense of self and of time became sophisticated enough for them to become the first human to realize, "I'm going to die."
就像你生命中的某一时刻 还是小孩的时候，对自我和时间的认知 变得十分复杂 你意识到你难逃一死， 所有在人类进化的某个时刻， 前人对自我和时间的认知 开始变得复杂 然后成为第一批意识到， “我终将会死去。”的人们。