Liberty is the only thing worth fighting for.

The PAC learning framework provides a formal way to analyze the efficiency and effectiveness of learning algorithms.

In the world of poetry, there are no boundaries, only endless possibilities.

The everyday is always extraordinary if you look closely enough.

自我不是一成不变的东西，而是通过选择行为不断形成的东西。

预见数学未来的真正方法是研究它的历史和现状。