知识的最大敌人不是无知，而是知识的幻觉。
The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge.
The value of a commodity, or the quantity of any other commodity for which it will exchange, depends on the relative quantity of labor which is necessary for its production, and not on the greater or less compensation which is paid for that labor.
The best way to predict the future of chemistry is to invent it.