“We still live in a world where the color of our skin not only gives a first impression, but a lasting one that remains,” says Brazilian artist Angélica Dass. She shows portraits from Humanae, the photo project she started to highlight the truly multi-colored hues of humankind.

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Rich and poor, left and right, we all agree the world should be more equal. Dan Ariely and Michael Norton have spent the past decade analyzing the data. Now, they tackle what to do next.