Earlier quoted context omitted.
The idea that gold has no real value is bizarre.
The idea of "real value" is bizarre. The value of something is how much you can get in return for the thing from a purchaser that you can find. Even "value is what we agree it is" isn't really right, it's what you can concretely get for the thing. (For instance, the fact that a certain Magic the Gathering card is listed in some book for $20 is meaningless if you can't find anyone who will give you more than $5.) Ther…
Value is a different beast entirely. If you buy a thing, for example, you consider it's value > it's price. Otherwise you wouldn't (shouldn't ?).
Of course, value is about as nebulous a concept as love, or anything else that only exists in a human mind.
Economic systems are what determines the connection between value and price.