know the price of everything and the value of nothing

know the price of everything and the value of nothing

To be so materialistic that one is unable to gauge or recognize something's true value. The phrase comes from Oscar Wilde. Did you see her Christmas list? Geez, teens today know the price of everything and the value of nothing. Yeah, Michael has lots of fancy things, but I suspect he knows the price of everything and the value of nothing.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
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