"One great complaint, I think, must stand against the modern upholders of the simple life in all its varied forms, from vegetarianism to the honourable consistency of the Doukhobors. This complaint against them stands, that they would make us simple in the unimportant things, but complex in the important things. They would make us simple in the things that do not matter-- that is, in diet, in costume, in etiquette, in economic system. But they would make us complex in the things that do matter--in philosophy, in loyalty, in spiritual acceptance, and spiritual rejection. It does not so very much matter whether a man eats a grilled tomato or a plain tomato; it does very much matter whether he eats a plain tomato with a grilled mind. The only kind of simplicity worth preserving is the simplicity of the heart, the simplicity which accepts and enjoys. There may be a reasonable doubt as to what system preserves this; there can surely be no doubt that a system of simplicity destroys it. There is more simplicity in the man who eats caviar on impulse than in the man who eats grape-nuts on principle."
G K Chesterton, Heretics