theory of beta decay.’ ” Although Segrè found Oppenheimer “the fastest thinker I’ve ever met,” with “an iron memory . . . brilliance and solid merits,” he also saw “grave defects” including “occasional arrogance . . . [that] stung scientific colleagues where they were most sensitive.” “Robert could make people feel they were fools,” Bethe says simply.1713 “He made me, but I didn’t mind.