【讲解】：人格高尚的人不可用小事情考验他，却可以委以重任；人格低下的人不可委以重任，却可用小事情考验他。

跨学科合作对解决全球能源问题至关重要。

"One way of looking at speech is to say that it is a constant stratagem to cover nakedness."

The computer is a fantastic tool if you know how to use it.

The first lesson reading teaches is how to be alone.