The Kingdom of God is Within You by Leo Tolstoy Chapter 8 Page 10

between men took place, since every conflict is nothing else than resistance by force to what each of the combatants regards as evil. But before Christ, men did not see that resistance by force to what each regards as evil, simply because one thinks evil what the other thinks good, is only one of the methods of settling the dispute, and that there is another method, that of not resisting evil by force at all.

Before Christ's teaching, it seemed to men that the one only means of settling a dispute was by resistance to evil by force. And they acted accordingly, each of the combatants trying to convince himself and others that what each respectively regards as evil, is actually, absolutely evil.

And to do this from the earliest time men have devised definitions of evil and tried to make them