军事毕竟是不得已而为之的事情；人类的发展应该建立在共进而非争斗上。因此科技应用的流向应该是由民用流向军用，而非相反；如果现实是后者，则略显悲哀。

After all, military affairs are nothing but a last resort, and human development should be based on common progress rather than fighting. Therefore, the flow of science and technology applications should go from civilian to military rather than vice versa; if the reality is the latter, it would only be sad rather than cheerful.