比被人议论更糟的是无人议论。

The conjectures of the Langlands program are a challenge to the next generation of mathematicians.

The barriers to women’s advancement are often invisible until you look for them.

投资于更清洁的能源解决方案不仅对环境有益，对企业也有益。

上帝不能无处不在，所以他创造了母亲。