One of the tracts handed to me at the Jackson Hole Summit in Wyoming in August 2015 proclaimed: “Knowledge is Wealth”.
Knowledge is not wealth; knowledge has no substance. Knowledge is the potential for thought with the possibility of application.
It could be more properly phrased: the useful application of knowledge in the presence of the ability to store value (preferably stable) over time may result in wealth. Though more factual, the phrase is still fairly useless because nothing can be gained from it.
Wealth is dependent upon the ability to produce and exchange surplus goods and to stably store over indefinite time the value gained from that exchange, i.e. Gold must be in circulation.