"To understand the present, we must first understand the past."
要理解现在，我们必须首先理解过去。
压力是一种特权。
在科学中，最重要的发现往往来自于关注意外现象。
Sun don't shine forever, but as long as it's here then we might as well shine together.
经济学是对人类日常生活事务的研究。