Click on the phrases to see them in context. The original texts by Immanuel Kant and David Hume are available from the Gutenberg Projet..As to the former actions, I assert they proceed from a reasoning, that is not in itself different, nor founded on different principles, from that which appears in human nature. Hence the pure rational conceptions of totality in the synthesis of conditions have a necessary foundation in the nature of human reason--at least as modes of elevating the unity of the understanding to the unconditioned. In our theory of the true nature of these two original forms of the sensibility, both difficulties are surmounted. The most probable hypothesis, which has been advanced to explain the distinction betwixt vice and virtue, and the origin of moral rights and obligations, is, that from a primary constitution of nature certain characters and passions, by the very view and contemplation, produce a pain, and others in like manner excite a pleasure. But though this generosity must be acknowledged to the honour of human nature, we may at the same time remark, that so noble an affection, instead of fitting men for large societies, is almost as contrary to them, as the most narrow selfishness. That this proceeds from an original quality or primary impulse, will likewise appear evident, if we consider that it is the distinguishing characteristic of these passions Unless nature had given some original qualities to the mind, it coued never have any secondary ones; because in that case it would have no foundation for action, nor coued ever begin to exert itself. Such a dispute serves merely to disclose the antinomy of reason, which, as it has its source in the nature of reason, ought to be thoroughly investigated.