The arithmetic of algebraic varieties is a window into the hidden structures of mathematics.
可持续捕捞不是一种选择——如果我们想保护海洋生物，这是唯一的前进道路。
The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.
Known for all that you were during this brief stay.How sad it seems to leave this earth without those you love the most ever really knowing who you were.
我们都对边疆的概念着迷，但这个边疆在不断后退。
教师必须相信学生的潜力。他必须在每个人身上看到神圣之火的火花。
我们相信云计算将使技术民主化，让每个人都能使用。
The real tragedy of the poor is that they can do nothing but wait for the rich to give them something.