What is the dignity of human existence? This question, which arises not only from the natural human need to know but especially from the crises we know today, is at the heart of this work. In the answer to it, Aristotle offers, in his ethico-political theory, a conception of human life based on his discovery of nature in the Physics and Metaphysics. Human beings alone make things happen by their actions and fulfill themselves through them. This is according to nature, which is the principle of order and makes everything beautiful, and makes spring up the call for human responsibility. This...