研究量子引力对于理解早期宇宙至关重要。

Keep cool, but care.

Success is not the key to happiness. Happiness is the key to success. If you love what you are doing, you will be successful.

Good and great are seldom in the same man.

你画的每一条线都有后果——空间的、结构的、社会的。

逻辑学研究不仅仅是关于形式系统，更是关于推理本身的本质。