Who said "War is the only truth that matters."?

This quote is attributed to Steppenwolf.

War is the only truth that matters. - Steppenwolf

"War is the only truth that matters."

Steppenwolf War

"I am the lord of Apokolips, and I bow to no one."

"Your world is fragile, built on false hope and fleeting dreams."

"Strength is the only currency that matters in this universe."

"I have conquered countless worlds. Yours will fall like all the rest."

"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."