质量绝非偶然，它总是智慧努力的结果。

The study of Galois representations is a bridge between number theory and geometry.

但没有这种自由，即随心所欲地支配我们所愿的一切。

有了实际工作，宝宝的自我意识就会逐渐发展、强化。

每一本书都是一次旅程，而每一次旅程都是一本书。

Success is the only option, failure’s not.

Part of company culture is path-dependent—it's the lessons you learn along the way.

实际发展水平与潜在发展水平之间的距离，前者由独立解决问题决定，后者由在成人指导下或与更有能力的同伴合作解决问题决定。

"Opportunities don't happen. You create them."

The more you learn, the more you know, the more you know, the more you forget. The more you forget, the less you know. So why bother to learn?

Today is cruel, tomorrow is crueler, and the day after tomorrow is beautiful. But most people will die tomorrow night, so don't give up today.

"The world is full of obvious things which nobody by any chance ever observes."