In a few breathtaking months, we’ve culturally moved from seeing Wall Street as an icon of thriving civil society to discussing its workings with book titles like “House of Cards” and “Animal Spirits.” As part of our ongoing Repossessing Virtue series, we look at what science is learning about trust, fair play, and empathy — and what these qualities have to do with human character and economics. Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.