时间旅行是世界上最令人沮丧的事情。你无法改变任何事情，也无法阻止任何事情的发生。
Time travel is the most frustrating thing in the world. You can't change anything, and you can't stop anything from happening.
People, even more than things, have to be restored, revived, reclaimed and redeemed; never throw out anyone.
与病毒的斗争是自然与人类智慧之间的较量。
The key to understanding human cognition is to understand how symbols are manipulated.
The more time I spent on mathematics, the more excited I got.
In quantum computing, we are not just pushing the boundaries of technology, but also exploring the fundamental limits of what is computable.
