Usually the writers in the English tongue prefer a different basis than any of these which I have mentioned; they prefer the basis as to whence is derived the food supply of a nation, or a tribe; and on the source of that food supply they divide nations and tribes into the more or less cultured. In earliest times (and among the rudest tribes to-day) the food supply is furnished entirely by natural means; there is little or no agriculture known to speak of; there is nothing in the way of preserving domestic animals for food; hunting the wild beasts of the forests and fishing in the streams are the two sources. Therefore, we call that last condition the hunting and fishing stage of human development. You will observe that when that prevails there can be no congregation of men into large bodies. Such a thing as a city would be unknown. The food supply is eminently precarious. It depends upon the season and upon a thousand matters not under the control of man in any way. Moreover, inasmuch as the supply at the best is uncertain, it allows but a very limited population in a district; nor does it permit any permanent or stable inhabitations. The towns, such as they are, must be movable; they must go to one part of the country in the summer and another in the winter; they must follow the game and the fruits; and in that condition, therefore, of unstable life it is not possible for a nation or a tribe to gain any great advance. You observe, therefore, that when the food supply is drawn from this source it does entail a general depravity of culture everywhere.