Pure mathematics is, in its way, the poetry of logical ideas.

The heart of another is a dark forest, always, no matter how close it has been to one’s own.

Don’t let fear stop you from chasing your dreams.

自我只是它在成为过程中的东西。

Because I'm your mom, it counts the mostbecause I know you the most.

The security dilemma is a fundamental feature of international politics, as states' efforts to increase their own security often decrease the security of others.

每一个项目都是一次新的冒险，一个新的挑战。

知识是经验的产物。