进步的最大障碍不是无知，而是知识的幻觉。
The greatest obstacle to progress is not ignorance, but the illusion of knowledge.
The history of all hitherto existing society is the history of class struggles.
Investors should avoid trying to time the market; it's a losing strategy.
A good abstraction is one that emphasizes the important details and suppresses the unimportant ones.
一个好的抽象是强调重要细节并抑制不重要细节的抽象。
翻译：商汤、周武王发动的革命，是顺应天命、合乎人心的。
"Books say: She did this because. Life says: She did this. Books are where things are explained to you; life is where things aren't. I'm not surprised some people prefer books."
