I think that the thing that makes mathematics worthwhile is the fact that it has this incredible structure that you can explore and discover.
程序最重要的属性是它是否实现了用户的意图。
多元宇宙不是一个理论,而是某些理论的预测。
免费的疫苗比昂贵的治疗更有价值,但更难推广。