Who said "I'm grateful for the chance to make a difference."?

This quote is attributed to The Flash (DCEU).

I'm grateful for the chance to make a difference. - The Flash (DCEU)

"I'm grateful for the chance to make a difference."

The Flash (DCEU) Gratitude

"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."

"Gratitude makes life richer."

"A grateful heart is a happy heart."

"Respect those who came before us."

"Life's greatest treasures are the people we love"