I have never heard about any perfect marriage. They say perfect marriages are made in heaven. Nobody comes back from there so maybe it is true, but what kind of marriage will those perfect marriages be? There will be no tension, there will be no individuality in the man or in the woman. They will never collide, they will never fight. They will be too sweet to each other. And too much sweetness brings diabetes! Marriage is an institution that teaches a man regularity, frugality, temperance, forbearance and many other splendid virtues he would not need had he stayed single.