Who said "I can live on potatoes alone, for a long time."?

This quote is attributed to Mark Watney.

I can live on potatoes alone, for a long time. - Mark Watney

"I can live on potatoes alone, for a long time."

Mark Watney

Character in The Martian

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"I'm going to have to science the shit out of this (paraphrased)"

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"The key to survival is solving problems one at a time"

"Humor and maintaining perspective are essential to survival"