+5. The strain of improvement and consistency.+ The folkways, being ways of satisfying needs, have succeeded more or less well, and therefore have produced more or less pleasure or pain. Their quality always consisted in their adaptation to the purpose. If they were imperfectly adapted and unsuccessful, they produced pain, which drove men on to learn better. The folkways are, therefore, (1) subject to a strain of improvement towards better adaptation of means to ends, as long as the adaptation is so imperfect that pain is produced. They are also (2) subject to a strain of consistency with each other, because they all answer their several purposes with less friction and antagonism when they cooperate and support each other. The forms of industry, the forms of the family, the notions of property, the constructions of rights, and the types of religion show the strain of consistency with each other through the whole history of civilization. The two great cultural divisions of the human race are the oriental and the occidental. Each is consistent throughout; each has its own philosophy and spirit; they are separated from top to bottom by different mores, different standpoints, different ways, and different notions of what societal arrangements are advantageous. In their contrast they keep before our minds the possible range of divergence in the solution of the great problems of human life, and in the views of earthly existence by which life policy may be controlled. If two planets were joined in one, their inhabitants could not differ more widely as to what things are best worth seeking, or what ways are most expedient for well living.