A world of light

"MANY YEARS AFTER my father's death I received a letter from a stranger who had just discovered George Sarton, one of those moving readers who comes upon a classic work, ignorant, as it were, and under his own steam, with the freshness of personal adventure: "I can only say that your father's great work moves me just as does the final fugue in The Art of the Fugue where Bach sums up all musical knowledge in a quadruple-and also unfinished-fugue.""