“Men of profound sadness betray themselves when they are happy: they have a mode of seizing upon happiness as though they would choke and strangle it, out of jealousy--ah, they know only too well that it will flee from them!”

German philosopher of the late 19th century, Nietzsche is best known for his critical examination of traditional morality and religion, as well as his influential concepts like the "will to power" and the "Übermensch." His provocative critiques of culture, art, and human nature continue to shape philosophical and psychological thought.