Who said "I never thought this day would come, but here we are."?

This quote is attributed to Dr. Emmett Brown.

I never thought this day would come, but here we are. - Dr. Emmett Brown

"I never thought this day would come, but here we are."

Dr. Emmett Brown Gratitude

"Great Scott!"

"This is heavy."

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

"If my calculations are correct, when this baby hits 88 miles per hour, you're gonna see some serious shit."

"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"