A wise man will not sit down and cry for the failure, they must be looking for ways to save them with optimism.

明智的人决不坐下来为失败而哀号，他们一定乐观地寻找办法来加以挽救。

youdao

What can we do about this but cry to ourselves: "they will never exist any more, or they will exist for others," and do what must be done so that others at least do not go begging?

除了哀怨地自语：“它们将永远不复存在，就算存在也是属于别人的”，我们还能为此做些什么呢？为了使人们至少不必去乞讨，我们必须做些什么呢？

youdao

For one thing, one theory is that babies hear other babies cry, because babies are so stupid they think they themselves are crying; if they're crying they must be in some sort of pain so they cry some more."

例如，有理论说婴儿听到别的婴儿哭，因为婴儿都笨得要命,他们以为是自己在哭;,他们会以为自己哭了，那一定是痛了,所以他们就哭得更厉害”

耶鲁公开课 - 心理学导论课程节选