What I can know? What should I do? What do you expect? The three great Kantian questions are the starting point of the meditations that the German philosopher pick in his major works. The approach to the philosophy Immanuel Kant proposed through these three fronts, knowledge, morality and metaphysics, made a new conception of man and helps define the vision that human beings have of itself from the eighteenth century to today.
"Two things fill the mind with admiration and veneration ever renewed and increasing the more frequent and continuously reflect on them: the starry sky above me and the moral law within me."