The highest activities of consciousness have their origins in physical occurrences of the brain just as the loveliest melodies are not too sublime to be expressed by notes.

We're all prostitutes if you think about it. The whole capitalist system is built on meretriciousness. You sell your body or you sell your mind, and the Cartesian mind/body thing is a fallacy anyway, your mind is just your brain, so it amounts to the same thing really.