El déficit del querer en Kierkegaard. Clarificación del concepto de «voluntad» en La enfermedad mortal

The present paper explains why Kierkegaard affirms that the modern thinkers are wrong when they understand their own philosophy as a christian philosophy. The main problem of modern thought is that it lacks of a correct concept of sin. Because of that, the philosophy of the Modern age can only develop an ethic theory but not an ethic for the actual life. Only Christianity has a proper concept of sin that´s why the only true ethic is the christian one. First, the paper exposes and criticizes two objections (Aristotle and Descartes) against the intellectual ethic from Kierkegaard´s point of view. Second, the paper reconstructs the notion of human will wich is developed in Either Or. Third, the paper analyzes the main argument of Sickness unto Death: without the christian idea of the will, as Kierkegaard interprets it in Sickness unto Death, the socratic and intellectual conception of the sin can not be overcome