Authors:

Intelligence is: (a) the most complex phenomenon in the Universe; or (b) a profoundly simple process. The answer, of course, is (c) both of the above. It's another one of those great dualities that make life interesting.

Ray Kurzweil (2000). “The Age of Spiritual Machines: When Computers Exceed Human Intelligence”, p.142, Penguin
Intelligence is: (a) the most complex phenomenon in the Universe; or (b) a profoundly simple process. The answer, of course, is (c) both of the above. It's another one of those great dualities that make life interesting.