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- [Tyler] Now Socrates -- I actually disagree with him --
he said the only true wisdom is in knowing that you know nothing.
So I'm an economist.
I'm not a philosopher.
So what does the economist say?
The economist does not say that he or she knows nothing.
The economist says "I know one thing --
maybe it's only one thing, but it's one thing."
And that one thing is
that the demand curve slopes downward.