The history of all hitherto existing society is the history of class struggles.
It is time to abandon the superstition that natural science cannot be logically respectable until philosophers solve the problem of induction.
风险管理不是消除风险,而是在可接受的范围内理解和控制风险。
在每个故事中,都有作者的一片心,他们灵魂的一角裸露给世界看。
Innovation is not just about creating something new; it's about making what exists better.