原文:I do not know with what weapons World War III will be fought, but World War IV will be fought with sticks and stones.
19、我并不假装理解宇宙——它比我大得多。
原文:I don't pretend to understand the universe— it's much bigger than I am.
20、我喜欢旅行，但我不喜欢到达。
原文:I love to travel, but hate to arrive.
21、我从不展望未来。它来得够快的了。
原文:I never think of the future. It comes soon enough.
22、我认为只有大胆的投机，而不是信息的积累才能把我们往前推。
原文:I think that only daring speculation can lead us further and not accumulation of facts.
23、我想知道上帝的构思；其他的都是细节。
原文:I want to know God's thoughts; the rest are details.
24、如果A代表一个人的成功，那么A等于x加y加z。勤奋工作是x；y是娱乐，而z是把嘴闭上。If A is a success in life, then A equals x plus y plus z. Work is x; y is play; and z is keeping your mouth shut.
25、如果我再次成为一个展望人生的年轻人，我不会选择成为一个科学家、学者或是教师。我宁可去做一个水管工或是小商贩，只期盼能当今社会还有一定程度上的自由。
原文:If I would be a young man again and had to decide how to make my living, I would not try to become a scientist or scholar or teacher. I would rather choose to be a plumber or a peddler in the hope to find that modest degree of independence still available under present circumstances.
26、如果我的相对论被证明是正确的，德国人就会说我是德国人，法国佬会说我是一个世界公民。如果我的相对论被否定了，法国佬就会骂我德国鬼子而德国人就会把我归为犹太人。
原文:If my theory of relativity is proven correct, Germany will claim me as a German and France will say I am a man of the world. If it's proven wrong, France will say I am a German and Germany will say I am a Jew.
27、如果我们知道我们在做什么，那么这就不叫科学研究了；不是吗？
原文:If we knew what we were doing, it wouldn't be called research, would it?