Who said "You must understand the nature of your enemy."?

This quote is attributed to T-800.

You must understand the nature of your enemy. - T-800

"You must understand the nature of your enemy."

T-800 Knowledge

"I'll be back."

"Come with me if you want to live."

"I need your clothes, your boots, and your motorcycle."

"There's no fate but what we make for ourselves."

"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."