I'm not a saint, I'm not a sinner, I'm just a man who's made mistakes.
Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.
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。