Friedrich Nietzsche launched a radical, sweeping criticism of traditional religion (especially Christianity) and morality, viewing them as forces that debilitate humanity.

Critique of Religion (Christianity): Nietzsche saw Christianity as a "slave morality" propagated by the weak and resentful. It inverted natural human values, promoting humility, pity, and egalitarianism, while denigrating strength, pride, and excellence. For him, concepts like "God" were constructs that denied this world, promising salvation in an afterlife and fostering resentment against earthly joy and vitality. The "death of God" was, for Nietzsche, a declaration of liberation from these repressive values.

Critique of Morality: He argued that traditional morality (derived from Christianity) was life-denying. It suppressed humanity's natural will to power, creativity, and self-overcoming, replacing it with conformity, guilt, and mediocrity. He sought a "transvaluation of all values," advocating for a "master morality" that celebrates strength, nobility, and the creation of one's own values by the Übermensch (Overman). His criticism aimed to awaken humanity to its full potential beyond conventional constraints.