If it were only that people have diversities of taste, that is reason enough for not attempting to shape them all after one model. But different persons also require different conditions for their spiritual development, and can no more exist healthily in the same moral, than all the varieties of plants can in the same physical, atmosphere and climate.
John Stuart MillSo true is that unnatural generally means only uncustomary, and that everything which is usual appears natural.
John Stuart MillNo slave is a slave to the same lengths, and in so full a sense of the word, as a wife is.
John Stuart MillPolitical Economy, in truth, has never pretended to give advice to mankind with no lights but its own; though people who knew nothing but political economy (and therefore knew it ill) have taken upon themselves to advise, and could only do so by such lights as they had.
John Stuart Mill