Interesting idea in Kant that thinking and imagination enable humans to conceive of reality as different from what it appears to be. This is obvious - I can easily imagine being a woman, or being Austrian, or not being born. Hence we can re-think things, and act accordingly. However, this is not the same as AB's version of 'free will stems from the soul', since that ability to re-think need not be attributed to the soul. Occam's razor again.