Who said "Courage is not the absence of fear, but mastery of it."?

This quote is attributed to Starforce.

Courage is not the absence of fear, but mastery of it. - Starforce

"Courage is not the absence of fear, but mastery of it."

Starforce Courage

"We are not bound by your Earth customs or morality."

"Your species has such a capacity for self-deception."

"War is not something to be feared—it is something to be understood."

"You cannot hope to comprehend the scope of what we have achieved."

"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."