If time travel is possible, where are the tourists from the future?
位置测量越精确,动量测量就越不精确,反之亦然。
无论有无宗教,好人都能行善,坏人都会作恶;但要让好人作恶——这需要宗教。
The poor perpetually sell their time cheaply, yet can never buy it back.
最好的想法往往来自于倾听那些最接近问题的人。
The most important thing is to tell a good story. Everything else is secondary.