We must remember that literature is not just entertainment, it has a deeper meaning.
我们必须记住，文学不仅仅是娱乐，它还有更深的意义。
I’m the worst thing since Elvis Presley to do black music so selfishly and use it to get myself wealthy.
The best traders are those who can adapt to changing market conditions.
解释：处于安全环境时要考虑到可能出现的危险，考虑到危险就会有所准备，事先有了准备就可以避免祸患。