善是无法定义的。

The only way to discover the limits of the possible is to go beyond them into the impossible.

哲学是对智慧的永恒追求。

科学应该弥合实验室和实地之间的差距。

The best decisions are made when you listen to both data and people.

城市的穷人就像树的根：看不见，但对生存至关重要。