Who said "I'm still learning what it means to be a hero."?

This quote is attributed to The Flash (DCEU).

I'm still learning what it means to be a hero. - The Flash (DCEU)

"I'm still learning what it means to be a hero."

The Flash (DCEU) Leadership

"I'm fast. Really fast."

"Time moves differently when you're moving at super speed."

"You gotta embrace what makes you different."

"Running away isn't always the answer, even when you're fast enough to do it."

"A leader must be fair and just."

"Integrity is everything."

"One must take responsibility for one's environment."

"In this house, I make the decisions"