科学的本质是提出正确的问题。
The essence of science is to ask the right questions.
It is hard to imagine a more stupid or more dangerous way of making decisions than by putting those decisions in the hands of people who pay no price for being wrong.
——序，姚伯麟《战后太平洋问题》，1919年9月
人生苦短，不要活在别人的梦想里。