Friedrich Nietzsche (1844–1900) was a German philosopher, essayist, and cultural critic whose work has had a profound influence on Western philosophy and modern intellectual history. His literary style is characterized by aphoristic prose, rich metaphors, and a penchant for question traditional morality and religious norms. Nietzsche's thought is often associated with existentialism, although he predated the formal establishment of that movement. His ideologies explored the depths of the will, power, and the nature of human existence. Nietzsche's seminal works include 'Thus Spoke Zarathustra,' 'Beyond Good and Evil,' and 'The Birth of Tragedy.' 'The Will to Power,' often considered one of his principal works, is a collection of writings edited posthumously by his sister Elisabeth Förster-Nietzsche. The book is a compendium of reflections that expounds upon Nietzsche's ideas on power, life, and Nihilism. The legacy of Friedrich Nietzsche endures extensively in philosophy, psychology, arts, and literature, marking him as a pivotal figure in the understanding of modern human condition.