The real tragedy of the poor is that they can afford nothing but self-denial.

The study of Galois representations is a testament to the power of algebraic methods.

The writer must believe that what he is doing is the most important thing in the world. And he must hold to this illusion even when he knows it is not true.

The real challenge is to create spaces that resonate with people's emotions.

以客观角度来看，这个世界确实变得更好，但同时也变得更糟。前进一步，又倒退一步，仿佛宇宙在科技进步和文化倒退间达成平衡，使人类的进展呈钟形曲线。