数学中的每一个问题都是学习新东西的机会。
In business, as in life, you have to take risks to achieve great things.
The web is the most powerful tool we have for creating a more equal society.
可持续性是水产养殖的未来,我们必须投资于环保技术。
We are going to die, and that makes us the lucky ones. Most people are never going to die because they are never going to be born.