Who said "Fear is the greatest prison, and courage is the only key."?

This quote is attributed to Monte Cristo.

Fear is the greatest prison, and courage is the only key. - Monte Cristo

"Fear is the greatest prison, and courage is the only key."

Monte Cristo Courage

Character in The Count of Monte Cristo

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"Revenge is the lash of the scorpion."

"I am no bird; and no net ensnares me."

"My heart is a sepulcher in which I have entombed my past."

"Blessed are the merciful, for they shall obtain mercy."

"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."