数学中最重要的是理解概念，而不仅仅是记忆公式。

The world is so unpredictable. Things happen suddenly, unexpectedly. We want to feel we are in control of our own existence.

"The dead are as real as the living, but in a different way."

The power of the Internet lies in its ability to connect people.

The greatest thing in the world is to know how to belong to oneself.

The best way to predict the future is to create it.

The rise of China and other authoritarian states challenges the idea that liberal democracy is the only viable political system.

I don't want to be a star, I want to be a legend.