The most important thing in mathematics is to ask the right questions.

I said, to the people of the Philippines whence I came, I shall return. Tonight, I repeat those words: I shall return!

Environmental stewardship is not optional - it's our responsibility to future generations.

It is a far, far better thing that I do, than I have ever done; it is a far, far better rest that I go to than I have ever known.

唯一真正的自由是做自己的自由。

艺术无关美，而关乎真实，即使它丑陋。

思考你的未来的最佳时机就是现在。