The most exciting phrase to hear in science, the one that heralds new discoveries, is not 'Eureka!' but 'That's funny...'
The only limits we have are the ones we set for ourselves.
机械师应当坐在杠杆、螺丝、楔子、轮子等中间,就像诗人坐在字母中间一样,将它们视为他思想的展示。