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電磁場的方程是從實驗事實中推導出來的。

"The best literature asks questions rather than provides answers."

We are going to die, and that makes us the lucky ones. Most people are never going to die because they are never going to be born.

I've been waiting more than 30 years to say this: "Dad, I always told you I'd come back and get my degree." I want to thank Harvard for this timely honor. I'll be changing my job next year…and it will be nice to finally have a college degree on my resume.

成人必須給幼兒提供活動的空間。