物理学的美丽在于它能够用最深刻的理论解释最简单的现象。
计算的目的是洞察力,而不是数字。
Rule of 7 in research. You can find out anything if you are willing to go seven levels. If the first source you ask doesn’t know, ask them who you should ask next, and so on down the line. If you are willing to go to the 7th source, you’ll almost always get your answer.