Who said "What they taught me to do, I learned too well."?

This quote is attributed to Rambo.

What they taught me to do, I learned too well. - Rambo

"What they taught me to do, I learned too well."

Rambo Knowledge

"It's a war, what you're doing to these kids."

"They don't give you reason, they give you orders."

"I could have killed them all, I could kill you. In town you're the law, out here it's me."

"Don't push it or I'll give you a war you won't believe."

"We're not just after treasure. We're preserving history."

"The mind is humanity's greatest tool."

"A tidy room reflects a tidy mind."

"You can learn a lot about a person by how they keep their space."