> A more updated version would be that neoliberalism is the opiate of intellectuals.
The real opiate of the intellectuals is any system that gives you the belief that you've got things mostly figured out. Neo-liberalism definitely qualifies for some, but so does Marxism.
However, given the current state of things, there's probably more value to be had now from reading Marx than some venerable free market tract. Just don't let it go to your head.