Hammond: If Plato were alive today, what would he think of our modern times? Specifically, how would he react to a modern world where secularism and religious fundamentalism are growing further apart?

Buffalo: Some of the most iconic photos of Adolf Hitler show him at his most intense, eyes alight with frenetic energy as he addresses an audience or salutes a crowd.

Washington: More than a dozen years have passed since Professor Stuart Hart co-authored the landmark paper “The Fortune at the Bottom of the Pyramid” offering a blueprint for companies wanting to turn a profit while also lifting the world’s poorest people out of poverty. Two books would follow along with major investments from corporations looking to capitalize from -- and liberate -- the four billion people living on $8 a day.

Chicago: When it comes to the art of persuasion, you can attract more followers if you turn conventional wisdom on its head and stress what you like, not what you do.

Washington: Most would agree with the old adage to learn from your mistakes—but how?

Washington: If Diane could reverse time, she never would have slammed the door—an act of teen frustration and ongoing family conflict that finally got her kicked out of her mother’s house.