Inspired by Foucault, many say that all truth-claims are power plays. When you claim to have the truth, you are trying to get power and control over other people. Foucault was a disciple of Nietzsche, and to their credit they used this analysis on both the Left and the Right. If you claimed “everyone should do justice to the poor” in front of Nietzsche, he would question whether you said that because you really loved justice and the poor or because you wanted to start a revolution that would give you control and power.