An impartial survey of the heritage of the past undertakes critically to examine institutions, customs, ideas still current with a view to determining their relevancy and utility to our present needs. This demands, on the one hand, clarity as to what those needs are, and, on the other hand, freedom from prejudice for or against existing modes of life simply because they have a history. A critical examination of the past amounts practically to a taking stock, a summary of our social assets and liabilities. We shall find our ideas, for example, and our customs, a strange mixture of useful preservations, and absurd or positively harmful relics of the past. Ideas which were natural and useful enough in the situation in which they originated, live on into a totally changed situation, along with other ideas, like that of gravitation, which are as true and as useful now as when they were first enunciated. Many customs and institutions which may be found to have as great utility now as when they were first practiced generations ago, the customs and institutions, let us say, of family life, may be found persisting along with customs and institutions, like excess legal formalism (or, as their opponents claim, a bi-cameral legislative system or a two-party system) which may come generally to be regarded as impediments to progress.[1] The unprejudiced observer, scientifically interested in preserving those forms and mechanisms of social life which are of genuine service to his own generation, will not condemn or applaud "the past" _en masse_. He will, rather, examine it in specific detail. He will not, for example, dismiss classical education, because it is classical or old. He will rather try experimentally to determine the actual consequences in the case of those who study the classics. He will examine the claims made for the study, try in specific cases to find out whether those claims are fulfilled, and condemn or approve the study, say, of Latin and Greek, according to his estimate of the desirability or undesirability of those consequences. If he finds, for example, that the study of Latin does promote general literary appreciation, his decision that it should or should not be continued will depend on his opinion of the value of general literary appreciation as compared with other values in an industrial civilization. Similarly, with "freedom of contract," "freedom of the seas," military service, bi-cameral systems, party caucuses, presidential veto, and all the other political and social heritages of the past. [Footnote 1: The situation in the case of outworn social institutions is paralleled in the case of the human appendix, once possessing a function in the digestive system of primitive man, but now useless and likely on occasion to become a positive disutility.]