数学是给不同事物起相同名称的艺术。

The core of social products is to connect people, not simply transmit information.

Liberty is the fruit of thought.

You can try and read my lyrics off of this paper before I lay 'em, but you won't take the sting out these words before I say 'em.

When faced with challenges, focus on solutions rather than problems.

Global challenges require global thinking and local action.