好奇心是推动科学进步的引擎。
A legal system is a system of rules which are valid according to the system's own criteria of validity.
如果不符合现实,最优雅的理论也是无用的。
The true test of a mathematical idea is its ability to inspire further questions.
处理一个不自由的世界的唯一方法是变得如此绝对自由,以至于你的存在本身就是一种反叛。