科学不仅是理性的学科，也是浪漫和激情的学科。
Science is not only a discipline of reason but also one of romance and passion.
Speech is a kind of action， and our words are the tools we use to perform it.
The man who is fit to work at any particular trade is unable to understand the science of that trade without the kindly help and cooperation of men of a totally different type of education.
Don’t let fear hold you back from sharing your voice with the world.
科学不是凭经验行事。
Les lois sont des toiles d'araignée à travers lesquelles passent les grosses mouches et où restent les petites.