Who said "Adventure calls to those who aren't afraid to answer."?

This quote is attributed to Black Widow.

Adventure calls to those who aren't afraid to answer. - Black Widow

"Adventure calls to those who aren't afraid to answer."

Black Widow Adventure

"I'm not the only monster in the room."

"It's never too late to start over."

"We all have our secrets. The question is what we do with them."

"Family is complicated, but it's all we have."

"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."