Jonathan Swift said this quote

“ He asked me, what were the usual causes or motives that made one country go to war with another? I answered they were innumerable; but I should only mention a few of the chief. Sometimes the ambition of princes, who never think they have land or people enough to govern; sometimes the corruption of ministers, who engage their master in a war, in order to stifle or divert the clamour of the subjects against their evil administration. Difference in opinions has cost many millions of lives: for instance, whether flesh be bread, or bread be flesh; whether the juice of a certain berry be blood or wine; whether whistling be a vice or a virtue; whether it be better to kiss a post, or throw it into the fire: what is the best colour for a coat, whether black, white, red, or gray: and whether it should be long or short, narrow or wide, dirty or clean; with many more. Neither are any wars so furious and bloody, or of so long a continuance, especially if it be in things indifferent. ”