It was the best of times, it was the worst of times.
The process of doing mathematics is more important than the result.
[物理学是]一种良好的思考框架。将事物归结为他们的基本真理,然后从那里推理出来。
实现明天理想的唯一障碍是今天的疑虑。
A story is a way of understanding the other.