把你的手放在滚热的炉子上一分钟，感觉起来像一小时。坐在一个漂亮姑娘身边整整一小时，感觉起来像一分钟。这就是相对论。
原文:Put your hand on a hot stove for a minute, and it seems like an hour. Sit with a pretty girl for an hour, and it seems like a minute. That's relativity.