There is a certain unity between theory and practice. Recognizing it means establishing that a solely ideal consideration of the world is at the same time at the service of a type of practice and that a practice that places all its value only on itself nevertheless contains a type of theory incapable of explaining itself. Making changes in ideas assuming that effective changes in the world are deduced from them is the illusion or deception of an idealism that leads to solipsism and hallucination. To impose that practice emptied of theory is sufficient in itself is to assimilate it to utilitarianism and selfish pragmatism or to the crude prejudices of "common sense" or "sense." In this brief and dense work of Kant, practical theory is precisely peculiar modes of human existence that each determine by itself its own correlation with the other: what is good in theory must also be good fo...read more
