You get what you give. What you put into things is what you get out of them.
你付出什么就会得到什么。你投入什么就会从中得到什么。
The task of psychology is to reduce complex mental phenomena to their simplest components.
Every age has its pleasures, its style of wit, and its own ways.
煤炭不是问题所在,问题在于我们如何使用它。解决方案在于更清洁的技术和更好的利用。