真正的天堂是我们已经失去的天堂。
The true paradises are the paradises that we have lost.
It’s not the world that’s cruel. It’s the people in it.
"La ciudad no es sólo un escenario, es un personaje más en la historia."
大学就像养老院，而且事实上，更多人死在了大学里。
The best science often comes from asking the simplest questions.
Humor is just another defense against the universe.
你总能变得更好。
A proof is a device for convincing someone else that a mathematical statement is true.