我们今天所做的选择将在未来几代人的生活中回响。
The essence of mathematics lies in its freedom.
你的过去不能定义你的未来。
预测未来的最好方法就是去发明它。
If we don’t act now, the next generation will inherit a world with fewer resources and greater challenges.
I don't listen to what people say. I just go out there and do my best.