I don't know what I'd do without music.
我不知道没有音乐我会做什么。
If time travel is possible, where are the tourists from the future?
量子场论的发展表明，真空不是空的，而是充满了虚粒子。
I believe that one can write a great opera with real characters， real emotions， and real situations.
我相信一个人可以通过真实的角色、真实的情感和真实的情境来创作一部伟大的歌剧。
Do not weep; do not wax indignant. Understand.
The smart way to keep people passive and obedient is to strictly limit the spectrum of acceptable opinion, but allow very lively debate within that spectrum.
"To understand the world, you must first seek to understand yourself."