书籍是通往其他生活的窗户。
"Books are the windows to other lives."
Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.
The essence of the internet is connection, connecting everything.
I never doubted that IVF would work. I was just determined to make it happen.
历史学家必须怀有一种信念:人类不会也不能灭亡。
债券市场是市场预期的最终衡量标准。