Why men kill over language choice

"'This is the significance of the first question in the wilderness, and this is what Thou hast rejected for the sake of that freedom which Thou hast exalted above everything. Yet in this question lies hid the great secret of this world. Choosing "bread," Thou wouldst have satisfied the universal and everlasting craving of humanity -- to find someone to worship. So long as man remains free he strives for nothing so incessantly and so painfully as to find someone to worship. But man seeks to worship what is established beyond dispute, so that all men would agree at once to worship it. For these pitiful creatures are concerned not only to find what one or the other can worship, but to find community of worship is the chief misery of every man individually and of all humanity from the beginning of time. For the sake of common worship they've slain each other with the sword. They have set up gods and challenged one another, "Put away your gods and come and worship ours, or we will kill you and your gods!" And so it will be to the end of the world, even when gods disappear from the earth; they will fall down before idols just the same. "

--from Dostoevsky's classic The Brothers Karmazov. Book 4. Chapter 5, "The Grand Inquisitor"