ادوارد فون هارتل (Edward von Hartmann) was a German philosopher born in 1842 and known for his work in the field of philosophy and psychology. He is best recognized for his book, "Philosophy of the Unconscious," where he combined ideas from Immanuel Kant and Arthur Schopenhauer to explore the role of the unconscious mind in human behavior and experience. Hartmann's philosophy emphasized the importance of the unconscious in shaping thoughts and actions, suggesting that much of human behavior is driven by unconscious desires. His ideas contributed to the development of later psychological theories, influencing thinkers like Sigmund Freud and the broader field of psychology.