"In the end, we will remember not the words of our enemies, but the silence of our friends."

知识的增长是解决问题的关键。

Innovation is not just about new ideas, but about making them work.

资本是死劳动，像吸血鬼一样，只有吮吸活劳动才有生命，吮吸的活劳动越多，它的生命就越旺盛。