Who said "To understand your enemy, you must understand yourself."?

This quote is attributed to Shang.

To understand your enemy, you must understand yourself. - Shang

"To understand your enemy, you must understand yourself."

Shang Knowledge

"A man doesn't speak unless he has something to say."

"I need a man who can act like a woman."

"You fight good."

"Prepare yourself. The Huns have invaded China."

"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."