 Another radical thesis that Herder champions is that moral sentiments moreover as a rule turn out to be both suitable to and explicable in terms of the particular type of society and mode of life to which they belong. This is a central thesis in This Too a Philosophy of History. Thus Herder tries to show there that the moral values of each of the major period/cultures that he considers in the work can be explained in terms of their suitability to the character of the particular society and way of life to which they belonged—for example, the ancient Egyptians’ morality of diligence and civic faithfulness to their agricultural, industrial, and urban society and mode of life; the Romans’ morality of courage, prudence, and patriotism to their imperialistic, war-based society and mode of life; and so on. This thesis implicitly reinforces Herder’s Humean argument for sentimentalism by showing that moral attitudes are explicable in terms of their social function without recourse to moral facts. (Here again Herder’s approach would later be echoed by Nietzsche.)