Who said "You can't let fear paralyze you. You have to keep moving."?

This quote is attributed to Mark Watney.

You can't let fear paralyze you. You have to keep moving. - Mark Watney

"You can't let fear paralyze you. You have to keep moving."

Mark Watney Courage

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"

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

"Humor and maintaining perspective are essential to survival"

"Never let fear stop you from chasing your dreams."

"Courage is being afraid but doing it anyway."

"Sometimes you gotta do what you gotta do."

"Sometimes you have to be the monster to stop the monsters."