The more you know, the less you need.

The best moments in our lives are not the passive, receptive, relaxing times… The best moments usually occur if a person’s body or mind is stretched to its limits in a voluntary effort to accomplish something difficult and worthwhile.

Pictures must not be too plausible.

应对不自由世界的唯一方法是变得绝对自由，以至于你的存在本身就是一种反抗。

数学是一门活生生的学科，随着新思想的出现而不断发展。