" Suppose that, through legislation (an artificial means) and through a government-run school voucher program (an artificially created market), public schools are privatized. "Natural evolution" will then take place: Schools will have to compete, only the best competitors will survive, and those schools that cannot compete will cease to exist. The surviving schools, by the Folk Theory of the Best Result, will be the best schools. It is an argument
entirely based on two metaphors and a folk theory, all of which derive from Strict Father morality.
Many people do not notice that Evolution Is Survival Of The Best Competitor is, indeed, a metaphor, much less a Strict Father metaphor. One way to reveal its metaphorical character is to contrast it with a metaphor for evolution that takes the perspective of Nurturant Parent morality: Evolution Is The Survival Of The Best Nurtured. Here "best nurtured" is taken to include both literal nurturing by parents and others and metaphorical nurturing by nature itself. Where fitting an ecological niche is being metaphorized as winning a competition in one case, it is metaphorized as being cared for by nature in the other. Both are metaphors for evolution, but they have very different entailments, especially when combined with the metaphor Natural Change Is Evolution and the folk theory that evolution yields the best result. Putting these together yields a very different composite metaphor for natural change, namely, Natural Change Is The Survival Of The Best Nurtured, which produces the best result.
Applied to the issue of whether public schools should be privatized, this metaphor would entail that they should not be. Rather, public schools need to be "better nurtured," that is, given the resources they need to improve: better-trained and better-paid teachers, smaller classes, better facilities, programs for involving parents, community involvement, and so on. "

― George Lakoff , Philosophy in the Flesh: The Embodied Mind and its Challenge to Western Thought