| Sumario: | This article focuses on dyslexia. In trying to understand human nature, one learns much about its common forms by studying extremes. Special circumstances of constitution, environment, and history can make a characteristic appearing in an individual so extreme as to stand out in bold relief against his personality. The whole question of dyslexia provides a case in point. One of the group of signs that one encounters is related to the directionality in dealing with space, time, and motion in the outside world and with laterality and lateralization in the personality of individuals. It seems that in the scrutiny of the materials and hypotheses of science, advance in knowledge favors the mind open to acceptance of observed phenomena and their rational treatment, even when they seem very unusual. In 1925, after many years of study, neuroscientist Samuel Orton developed several hypotheses that he thought might help in explaining certain language-learning problems about which little was then known. He and his like-minded colleagues were also pursuing basic understanding of causes and relationships that could throw light on the problem as a whole.
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