Source: "Shang Junshu Tactics" "The king's soldiers win without arrogance, and lose without resentment."
Shang Jun, also known as Shang Zi, is a masterpiece of Shang Yang and his legalist thoughts. The specific author has been unable to verify.
The Warring States Policy and its last two articles have been identified as written by Shang Yang.
Therefore, this famous saying was undoubtedly written by Shang Yang.