Who said "I've been trained since childhood for this."?

This quote is attributed to Natasha Romanoff.

I've been trained since childhood for this. - Natasha Romanoff

"I've been trained since childhood for this."

Natasha Romanoff Education

"I'm not going to fight you."

"Sometimes the best way to solve your own problems is to help someone else."

"I have a very specific skill set."

"You know, I'm actually a very good liar."

"Education opens doors."

"Education opens doors to endless possibilities."

"I ain't got the education you got, bub."

"You can't put a price on history."