These days, Weissman said he sees too many scientists focused on a payout. The doctor, who’s written a children’s book about stem cells, said he always has high school students and undergrads working at his lab -- at a point in life “when they’re very idealistic.”

It’s something he tries to encourage.

“When you meet the patients who would’ve died except for your intervention -- that’s the best.”

This article was provided by Bloomberg News.

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