Worry--Lines We are used to thinking of intelligence as something that can be measured; however, as science allows us to know the human body and, specifically, the human brain better, the idea that intelligence can be given a number that differs from human being to human being, gets more and more obsolete.  Neuroscientist and former  Chairman of the Department of Physiology & Neuroscience at NYU,   Rodolfo Llinás , has noted that, “it is impossible to precisely describe all the aspects of the human intelligence, much more to give it a number.” Intelligence, Llinás points out, is the ability of the human brain to abstract to simplify . It is a universal property of the human brain, he says; and adds that it goes beyond humans: “All animals with a complex nervous system have the same capacity.” He brings out the fact that all human brains are different, therefore, they all work differently. That diversity, we know from biology, is essential for life.   Sir Ken Robinson , the late and