  The significant—and negative—impact upon her reputation as an original and innovative thinker followed from Koenig's accusation, upon the publication of Du Châtelet's Foundations, that she had plagiarized his ideas within the text, though given the point made above, that Leibnizian ideas were already present in the text she wrote before Koenig's arrival, his charge seems misplaced. Nonetheless, this stain upon the originality and power of Du Châtelet's intellect remained in some form or another until the mid-twentieth century when William Barber concluded that her thought was “essentially derivative” of a number of her male contemporaries, particularly Voltaire (Barber 1967). Others have argued for the originality of her views, and (Barber aside), this interpretation has been the dominant one since Ira O. Wade presented his careful case for her intellectual independence—again, particularly from Voltaire (Wade 1947). In what follows, more evidence is provided in favor of the growing belief that Du Châtelet is not a mere parrot of her more famous male contemporaries' views.