We are all experiments in progress.

The final purpose of art is to intensify, even, if necessary, to exacerbate, the moral consciousness of people.

We are stubborn on vision. We are flexible on details.

这是最好的时代，这是最坏的时代。

The mind is everything. What you think, you become.

The best way to learn mathematics is to do mathematics.

创新不会偶然发生，它需要纪律、专注和挑战现状的意愿。