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。
Time is a slippery thing: lose hold of it once, and its string might sail out of your hands forever.
The greatest legacy we can leave is a healthier planet for future generations.
提高的唯一方法就是挑战最好的对手。
The only limit to our realization of tomorrow is our doubts of today.