The Influence of Other Sciences on Optics Since, at least in my contention, optics per vades nearly all facets of science, I make no apology here when describing the life of a man known primarily for his contributions to mathematics. I refer to Joseph Louis Lagrange. (1736-1813). The comments presented here dwell primarily on his character and on the influence he had on his contemporaries, and has on present-day scientists. It is hoped that the relationship of this man's life to education in optics will become clear without delineating the details.