Who said "The future is calling us, Marty. We must answer."?

This quote is attributed to Doc Brown.

The future is calling us, Marty. We must answer. - Doc Brown

"The future is calling us, Marty. We must answer."

Doc Brown Adventure

"This is heavy."

"There's that word again, 'heavy.' Is there something wrong with the Earth's gravitational pull in the future?"

"Great Scott!"

"If my calculations are correct, when this baby hits eighty-eight miles per hour, you're gonna see some serious shit."

"The greatest adventure is life itself."

"The adventure of life begins with a single step."

"Adventure finds you when you stop running."

"Fortune and glory, kid."