Who said "I have ceased to wonder and have begun to act."?

This quote is attributed to Monte Cristo.

I have ceased to wonder and have begun to act. - Monte Cristo

"I have ceased to wonder and have begun to act."

Monte Cristo

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."