Time travel is the most frustrating thing in the world. You can't change anything, and you can't stop anything from happening.
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。
现实不是发生在我们身上的事情,而是我们对发生的事情的理解。
"The past is never dead. It's not even past."