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“By now, according to projections, we should have ended hunger. So my point is, what we’re doing isn’t working,” Howard Buffett, a philanthropist.

“In this way, sleeping ducks avoid becoming sitting ducks,” Niels Rattenborg, an ornithologist, on the adaptation that lets ducks at the edge of a flock sleep less deeply than others.

“If it could happen to Angelina Jolie, it could happen to me.” Joy Larsen Haidle, a genetic counselor, on cancer.

(Previous quotes from our sources here.)