"Over their lord, and bind him in green withes, For grinding at the mill 'neath rod and cord; Of the large grist that they may take their tithes-- So some serve Science that call Science lord. "One rule his life was fashioned to fulfil: That he who tends Truth's shrine, and does the hest Of Science, with a humble, faithful will, The God of Truth and Knowledge serveth best. "And from his humbleness what heights he won! By slow march of induction, pace on pace, Scaling the peaks that seemed to strike the sun, Whence few can look, unblinded, in his face. "Until he reached the stand which they that win A bird's-eye glance o'er Nature's realm may throw; Whence the mind's ken by larger sweeps takes in What seems confusion, looked at from below. "Till out of seeming chaos order grows, In ever-widening orbs of Law restrained, And the Creation's mighty music flows In perfect harmony, serene, sustained; "And from varieties of force and power, A larger unity, and larger still, Broadens to view, till in some breathless hour All force is known, grasped in a central Will, "Thunder and light revealed as one same strength-- Modes of the force that works at Nature's heart-- And through the Universe's veinèd length Bids, wave on wave, mysterious pulses dart. "That cosmic heart-beat it was his to list, To trace those pulses in their ebb and flow Towards the fountain-head, where they subsist In form as yet not given e'en _him_ to know. "Yet, living face to face with these great laws, Great truths, great myst'ries, all who saw him near Knew him for child-like, simple, free from flaws Of temper, full of love that casts out fear: "Untired in charity, of cheer serene; Not caring world's wealth or good word to earn; Childhood's or manhood's ear content to win; And still as glad to teach as meek to learn. "Such lives are precious: not so much for all Of wider insight won where they have striven, As for the still small voice with which they call Along the beamy way from earth to heaven." _Punch_, September 7, 1867. The estimate of M. A. de la Rive is from a letter he addressed to Faraday himself:--