It's a pleasure to welcome Amherst College psychology professor Dr. Catherine Sanderson back to the show. She was with us awhile back talking about her fabulous book, The Positive Shift: Mastering Mindset to Improve Happiness, Health and Longevity.
Professor Sanderson has written a new book about another fascinating topic. It's called, Why We Act: Turning Bystanders into Moral Rebels.
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