Thus metaphysics and mathematics are, among all the sciences that belong to reason, those in which imagination has the greatest role. I beg pardon of those delicate spirits who are detractors of mathematics for saying this . . . . The imagination in a mathematician who creates makes no less difference than in a poet who invents. . . . Of all the great men of antiquity, Archimedes may be the one who most deserves to be placed beside Homer.
Jean Le Rond D'Alembert (1717 - 1783)
Source: Discours Preliminaire de L'Encyclopedie, Tome 1, 1967. pp 47 - 48.