Sun Yat-sen wrote, of the significance of philosophy in action: “What is a principle? A principle is an idea, a belief, a force. As a rule, when men search for the truth of a thesis, they first reflect upon it, then their reflections grow into a belief, and that belief becomes a force. Hence in order to be firmly established, a principle must pass through the different stages of idea, belief, and force.”(222) No more definite statement of the ideological consequences of thought could be found. Sun Yat-sen appreciated this, and realized that, in the carrying out of his ideology, the first necessity was the adoption of the ideology itself. All other steps must be secondary. The grouping of the important steps in the fulfillment of the program of nationalism may have differed from time to time,(223) but the actual work of Sun Yat-sen was based upon the method indicated: the establishment of at least the preliminary notions of the ideology as a prerequisite to effective social action. (In this connection, and in anticipation of further discussion, it might be pointed out that the advantage of the Moscow-Canton entente was not one gained from the superior appeal of the Communist ideology, but from the superior agitation techniques which the Nationalists learned from the Communists, and which enabled them to bring into play the full latent social force in Sun Yat-sen’s ideas.) But if mere national-consciousness were insufficient of itself, what else was needed? Loyalty was necessary. Being aware of themselves as Chinese would not help them, unless they united and were loyal to that union. “To say that what the ancients understood by loyalty was loyalty toward the emperor, and that, since we no longer have an emperor, we (need no longer) speak of loyalty, and to believe that we can act as we please—that is a grave error.”(224) Sun Yat-sen thus points out one of the most tragically perplexing of the problems of the new China. He was urging return to the ancient morality. The ancient code of loyalty was one built up to the emperor. Although the emperor did not have much power, in comparison with some despots who have changed history, he was nevertheless the man at the apex of society. The Confucian society was one built in general upon the grand design of an enormous family; a design which was, nevertheless, flexible enough to permit the deposition of a wicked or mad emperor—something which the Japanese order of things could not in theory, although it did in fact, tolerate. Filial piety was piety toward one’s own family head; loyalty was piety toward the family head of all civilized society.