Who said "Courage is the thing. All goes if courage goes."?

This quote is attributed to John Steinbeck.

Courage is the thing. All goes if courage goes. - John Steinbeck

"Courage is the thing. All goes if courage goes."

John Steinbeck Courage

Novelist American 1902–1968

"The person who says it cannot be done should not interrupt the person doing it."

"All war is a symptom of man's failure as a thinking animal."

"Ideas are like rabbits. You get a couple and learn how to handle them, and pretty soon you have a dozen."

"The comfortable people want only waking and sleeping, eating and excreting, working and reproducing."

"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."