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。
"The changes we dread most may contain our salvation."
可持续发展不仅需要愿景，还需要具体行动。
追求数学真理是一项既个人又普遍的努力。
I don't want to be a product of my environment. I want my environment to be a product of me.
关键在于保持谦逊和渴望。
Technology should solve real problems, not just create new toys.