People who treat other people as less than human must not be surprised when the bread they have cast on the waters comes floating back to them, poisoned.
The best scientists are those who remain students forever.
模仿是最稳妥的创新。
采矿业必须带头展示采掘作业如何与环境管理共存。
The task of a writer consists in being able to make something out of an idea.