Surely my existence cannot be so purposeless? 想必,我的存在不可能如此毫无意义吧?
Since evolution has given rise to few, if any, purposeless physiological responset, it is logical to assume that crying has one or more functions that enhance survival. 既然进化产生了即使有也很少的、无目的的生理反应,我们就可以从逻辑上假设哭泣有一个或多个增强生存能力的功能。