Did Mark Twain say “Courage is resistance to fear, mastery of fear, not absence of fear”?

Did Mark Twain say “Courage is resistance to fear, mastery of fear, not absence of fear”?

Found word for word. Yes. The text appears in works attributed to Mark Twain. Source and location below.

_Courage is resistance to fear, mastery of fear--not absence of fear. Except a creature be part coward, it is not a compliment to say it is brave; it is merely a loose misapplication of the word. Consider the flea!--incomparably the bravest of all the creatures of God, if ignorance of fear were courage. Whether you are asleep or awake he will attack you, caring nothing for the fact that in bulk and strength you are to him as are the massed armies of the earth to a sucking child; he lives both day and night and all d …
The Tragedy of Pudd'nhead Wilson — Mark Twain (Samuel Clemens), CHAPTER 12 -- The Shame of Judge Driscoll · ¶461 · Public domain (US), Project Gutenberg #102 · source

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