Once when I was visiting a house which had been taken by a certain club, one of the members told me: "It is a very great pity that since we have taken this house there is always disagreement in our committee." I said: "No wonder. I see it." They asked: "Why?" I said: "The walls are red, they make you inclined to fight. A striking color from all around gives you the inclination to disagree. The emotions are touched by it, and certainly those inclined to disagreement are helped by it."