Note on the Plan of Nietzsche's Beyond Good and Evil -

Strauss wrote that Friedrich Nietzsche was the first philosopher to properly understand relativism, an idea grounded in a general acceptance of Hegelian historicism. Heidegger, in Strauss' view, sanitized and politicized Nietzsche, whereas Nietzsche believed "our own principles, including the belief in progress, will become as relative as all earlier principles had shown themselves to be" and "the only way out seems to be...that one voluntarily choose life-giving delusion instead of deadly truth, that one fabricate a myth".
Leo Strauss (1899 – 1973) was a German-American political philosopher and classicist who specialized in classical political philosophy. He was born in Germany to Jewish parents and later emigrated to the United States. He spent most of his career as a professor of political science at the University of Chicago, where he taught several generations of students and published fifteen books.