Profit without purpose is chemistry without catalysts - possible, but painfully slow and inefficient.

【译文】听到传闻不加考证随意传播，就是抛弃了道德。

"Every man has his secret sorrows which the world knows not; and often times we call a man cold when he is only sad."

船舶自动转向的引入是一个具有重大实际意义的问题，其解决需要开发一种新型控制器。