" That is evidence only that Sir Isaac makes good guineas, and that the British coin is the soundest currency of the whole world," William says doggedly. "Every member of this Jury watched—nay, participated in —the Assay. Did we not? None of us saw anything amiss. By our silence we have already consented to it, and vouchsafed its result. To reverse ourselves now , and say ’twas all done wrong, is to go before that man and say, ‘My lord, we do not know how to do an assay!’ " William gestures toward the end of Star Chamber, where the Duke of Marlborough’s absorbed in conversation with some other dignitary.