When Charlie Baker, a former Massachusetts governor, was enjoying enormous favor and lofty approval ratings as a Republican in a predominantly Democratic state, he was also stressing the importance of humility. He was fond of quoting Philippians 2:3, which he invoked as a lodestar for his administration. “Do nothing out of selfish ambition or vain conceit,” it says. “Rather, in humility value others above yourself.” That’s great practical advice for anyone in government, where most meaningful success hinges on teamwork and significant progress requires consensus. Governing, as opposed to demagoguery, is about earning others’ trust and cooperation. Exhibiting a willingness to listen to and to hear them goes a long way toward that. “Insight and knowledge come from curiosity and humility,” Mr. Baker wrote in a 2022 book, “Results,” coauthored with his chief of staff, Steve Kadish, a Democrat. “Snap judgments — about people or ideas — are fueled by arrogance and conceit. They create blind spots and missed opportunities. Good ideas and interesting ways to accomplish goals in public life exist all over the place if you have the will, the curiosity, and the humility to find them.”