科学无法解决自然的最终奥秘。这是因为，最终我们自己也是自然的一部分，因此也是我们试图解决的奥秘的一部分。

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.

If liberty means anything at all, it means the right to tell people what they do not want to hear.