The strength of a nation's institutions is not just in their formal rules, but in the informal norms that govern behavior and the degree to which they are internalized by the population.

问题的数学表述通常比其解决方案更重要，后者可能仅仅是数学或实验技巧的问题。

To build is to take a stand in the world.

I can't relate to lazy people. We don't speak the same language. I don't understand you. I don't want to understand you.

不要害怕提问。这就是你学习的方式。