在危机时期，真正的领导力是通过行动而不是言语来衡量的。
A mathematician's intuition is as important as rigorous proof.
数学的本质在于它的自由。
Every seed we plant today is a promise to future generations.
"I write to find out what I think."
我只想知道我将在哪里死去，这样我就永远不会去那里。