I don't need a reason to believe in myself.
In mathematics, you don't understand things. You just get used to them.
数学中的每个问题都有解答,关键在于找到正确的路径。
可持续性不是一种选择——它是我们对后代的责任。
The great powers are always searching for opportunities to gain power at the expense of their rivals, and they will use force if they believe it will bring them strategic advantage.