FRAGMENT FROM NATURE continues from last weekend and concludes this weekend on the theme of the vain quest for human exceptionality due to brain size. This quest was loosely rooted in the astonishing (to us today) assumption that humans are somehow different from the rest of nature, and had allusions to the equally astonishing mind-body debate. But above all, it came from the theme of religious exceptionality of mankind, and the Earth being the center of the universe.