In practice, socialism didn't work. But socialism could never have worked because it is based on false premises about human psychology and society, and gross ignorance of human economy.
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I have also been attacked by my opponents as someone seeking to purge university faculties of leftist professors. This is false. The first provision of the Academic Bill of Rights is that no professor should be hired or fired because of his or her political views. I have never myself called for the firing of any professor for his or her political views, nor would I.