Ethics lecture 6 - Kant 2

This recording cuts out just before the end (my dictaphone's battery went). All that's missing is me reading out the last couple of sentences of Groundwork:

And thus, while we do not comprehend the practical unconditional necessity of the moral imperative, we do comprehend its incomprehensibility. This is all that can fairly be demanded of a philosophy that presses forward in its principles to the very frontier of human reason.