"We are all in the gutter, but some of us are looking at the stars."
我们都在阴沟里，但仍有人仰望星空。
我们对宇宙理解的唯一限制是我们的想象力。
"Your attitude determines your direction."
通过教育唤醒灵魂。
我没有任何特别的秘诀（用于开发新的证明）……这就是为什么做研究既具有挑战性又具有吸引力的原因。这就像在丛林中迷路，试图利用你能收集到的所有知识来想出一些新的技巧，并且如果运气好的话，你可能会找到出路。
I don't have any particular recipe [for developing new proofs] ... It is the reason why doing research is challenging as well as attractive. It's like being lost in a jungle and trying to use all the knowledge that you can gather to come up with some new tricks, and with some luck you might find a way out.
可持续性不是一种选择；它是我们对下一代的责任。