一个科学家的真正价值是由他思想的独创性和信念的勇气来衡量的。
It is better for you to be free of fear lying upon a pallet, than to have a golden couch and a rich table and be full of trouble.
Failure is not terrible; what's terrible is not daring to try.
我们有责任为子孙后代留下一个比我们发现时更好的地球。