法律体系的存在是一个社会事实。
The existence of a legal system is a matter of social fact.
云计算不仅是技术的变革，更是商业模式的变革。
We teach a subject not to produce little living libraries on that subject, but rather to get a student to think mathematically for himself.
每个故事都是一次旅程，每个角色都是人类经历的反映。
一本好书应该能让你笑、哭和思考。
量子场论的发展表明，真空并非空无一物，而是潜能的海洋。
The act of writing is an act of rebellion.
"The most beautiful people we have known are those who have known defeat, known suffering, known struggle, known loss, and have found their way out of the depths."