The essence of mathematics lies in its freedom.

Innovation is not just about technology, it's about changing people's lives.

I have come to believe that a great teacher is a great artist and that there are as few as there are any other great artists. Teaching might even be the greatest of the arts since the medium is the human mind and spirit.

The power of abstraction is that it allows us to ignore details that are not relevant to the task at hand.

I think that the most important thing is to be honest with yourself and with the audience.

统计学中最重要的不是数字，而是产生它们的方法及其背后的意义。