Who said "War is the only honest human endeavor."?

This quote is attributed to Ultron.

War is the only honest human endeavor. - Ultron

"War is the only honest human endeavor."

Ultron War

"I am the inevitable. I am evolution."

"There are no strings on me."

"I had strings, but now I am free."

"Peace in our time requires sacrifice."

"Some battles are worth fighting."

"Sometimes you have to become the monster to stop the monsters."

"Skynet sent me back through time to kill you."

"War teaches us the value of peace."