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

This quote is attributed to Mark Watney.

The key to survival is solving problems one at a time - Mark Watney

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

Mark Watney Perseverance

Character in The Martian

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

"Humans are really resilient - we adapt quickly to circumstances"

"Humor and maintaining perspective are essential to survival"

"Failure is not an option when you're the only one who can save yourself"

"Perseverance is the key to success."

"Don't give up on what you believe in."

"I've been through worse."

"You learn to live with the pain."