The true challenge in mathematics is not solving problems, but asking the right questions.
我们必须自由,不是因为我们宣称自由,而是因为我们践行自由。
The earth gives us its treasures, but it's our duty to give back more than we take.
我喜欢争论,我喜欢辩论。我不期望任何人只是坐在那里同意我,那不是他们的工作。