Now Jimmy Wales has written a book titled “The Seven Rules of Trust: A Blueprint for Building Things That Last,” which will be published this month. In it, Wales tries to apply the lessons of Wikipedia’s success to our increasingly partisan, trust-depleted world. I talked to Wales about what, in his view, makes Wikipedia great, the various threats it’s facing and his persistent belief that most people are acting in good faith. And a note: Wales and I spoke several weeks before a man with a gun walked up on the stage at a Wikipedia conference in Manhattan on Friday. You can read more about that incident here.