What is social justice? For Friedrich Hayek, it was a mirage—a meaningless, ideological, incoherent, vacuous cliché. He believed the term should be avoided, abandoned, and allowed to die a natural death. For its proponents, social justice is a catchall term that can be used to justify any progressive-sounding government program. It endures because it venerates its champions and brands its opponents as supporters of social injustice, and thus as enemies of humankind. As an...