There is perversion that follows over-indulgence in the beauty that life offers; and equally perversion follows the too rigid observance of hard and fast moral, social, or religious ideas of order. However beneficial any method of life may appear, it inevitably leads, if carried to excess, to something disastrous or unwholesome which may be called perversion. And so it is that these unwholesome results are usually logical developments of causes of which the individual is the hapless victim; it is not always possible to blame him with justice for his condition.