The history of mathematics is a history of human thought and progress.
Models are not crystal balls, but they are the best tools we have to understand the future.
The only real mistake is the one from which we learn nothing.
We are not here to win the past; we are here to win the future.
在表演中,真相不是你说了什么,而是你如何说。
The world is not a wish-granting factory.