记忆是我们唯一不能被驱逐的天堂。
Memory is the only paradise from which we cannot be expelled.
The deepest theorems in mathematics often have the simplest statements.
The most important thing in science is not to solve problems, but to ask the right questions.
读书人虽然有学问，但只有知行合一，把学问付诸于生活实践，才是最根本的。否则的话，就是《弟子规》上讲的“不力行，但学文，长浮华，成何人”了。
When you play the game of thrones, you win or you die. There is no middle ground.