Newton was portly but not tall, his silvery locks were abundant without any baldness, and his eyes were sparkling and piercing, though perhaps they failed to indicate the profound genius which through them looked into the secrets of the universe. Wonderful humility blended with his intellectual greatness. To other men he seemed a spirit of higher rank, having almost superhuman faculties of mental vision, wont to soar into regions which the vulture's eye hath never seen; to himself he was but a boy playing with the shells on the seashore, while the ocean lay undiscovered before him. Others were taken up with what Newton accomplished, Newton was taken up with what remained to be done. So it is ever with the highest genius; the broader the range of view, the wider the horizon of mystery. He who understands more than others is conscious beyond others of what still remains to be understood. Isaac Newton was born at Woolsthorpe, in Lincolnshire, on December 25, 1642, one year after the death of Galileo, and just as England was being plunged into the confusion and miseries of civil war. Strange to say, as a lad, at first he was inattentive to study; but being struck a severe blow by a school-fellow, he strangely retaliated by determining to get above him in the class, which he accomplished, and ere long became head of the school. His play hours were employed in mechanical contrivances, and a windmill in the course of erection on the Grantham road was an object of intense curiosity and a source of immense instruction. He soon had a windmill of his own, at the top of the house in which he lived. He had also a water-clock in his bedroom, and a mechanical carriage in the parlor, in which he could wheel himself. Paper kites and paper lanterns were his favorite toys. In the yard of the house he traced on a wall the movements of the sun by means of fixed pins; the contrivance received the name of "Isaac's dial," and was a standard of time to the country people in the neighborhood. [Illustration: Newton analysing the ray of light.]