Society and its Products.--Beneath all the forms and processes of human society lies the fact of association itself. Industry, government, and civilization itself must be regarded as expressions of collective human life rather than _vice versa_. Industry, for example, is one side or aspect of man's social life, and must not be mistaken for society itself. Industry, government, religion, education, art, and the like, are all products of the social life of man. Among these coördinate expressions of collective human life, industry, being concerned with the satisfying of the material needs of men, is perhaps fundamental to the rest. But this must not lead to the mistaken view that the social life of man can be interpreted completely through his industrial life; for, as has just been said, beneath industry and all other aspects of man's collective life lies the biological and psychological fact of association. This is equivalent to saying that industry itself must be interpreted in terms of the biology and psychology of human association. In other words, industrial problems, political problems, educational problems, and the like must be viewed from the collective or social standpoint rather than simply as detached problems by themselves. We must understand the biological and psychological aspects of man's social life before we can understand its special phases. The Origin of Society.--From the definition of society that we have given it is evident that society is something which springs from the very processes of life itself. It is not something which has been invented or planned by individuals. Life, in its higher forms at least, could not exist without association. From the very beginning the association of the sexes has been necessary for reproduction and for the care and rearing of offspring, and it has been not less necessary for the procuring of an adequate food supply and for protection against enemies. From the association necessary for reproduction has sprung family life and all the altruistic institutions of human society, while from the association for providing food supply have sprung society's industrial institutions. Neither society nor industry, therefore, has had a premeditated, reflective origin, but both have sprung up spontaneously from the needs of life and both have developed down to the present time at least with but little premeditated guidance. It is necessary that the student should understand at the outset that social organization is not a fabrication of the human intellect to any great degree, and the old idea that individuals who existed independently of society came together and deliberately planned a certain type of social organization is utterly without scientific validity. The individual and society are correlatives. We have no knowledge of individuals apart from society or society apart from individuals. What we do know is that human life everywhere is a collective or associated life, the individual being