1 page, 8vo (6¾ X 5 in.)" /> EINSTEIN, Albert. Autograph manuscript signed ("A. Einstein"), comprising a draft of his celebrated aphorism on nature ("Die Natur verbirgt ihr Geheimnis durch die Erhabenheit ihres Wesens aber nicht durch List" (Nature hides her secret through the loftiness of her character, not through slyness), written, with revisions, on verso of a FULL SHEET OF EQUATIONS (these in pencil), n.d. [Berlin?, ca.1930?]. <I>1 page, 8vo (6¾ X 5 in.)</I> | Christie's