It was the new world that taught him that man invents nothing, is incapable of pure invention; that what seem his wildest, most fantastic imaginings are no more than ineffective, distorted attempts to set down a half-forgotten experience. What had once appeared prophecies he saw to be memories; the Day of Judgment, when the heavens should flame and men call upon the rocks to cover them, belonged to the past before it belonged to the future. The forecast of its terrors was possible only to a people that had known them as realities; a people troubled by a dim race-memory of the conquest of the air and catastrophe hurled from the skies.... So, at least, his children taught him to believe. XXII With years and rough husbandry the resources of the tribe were augmented and it emerged from its first starved misery; more land was brought under cultivation and, as tillage improved and better crops were raised, the little community was less dependent on the haphazard luck of its fishing and snaring and lived further from the line of utter want. While, save in bad seasons, the inter-tribal raiding that was caused by sheer starvation was less frequent. Even so, strife was frequent enough—small intermittent feud that flared now and again into savagery; the desire of a growing community to extend its hunting-grounds at the expense of a neighbour meant, almost inevitably, appeal to the right of the strongest. Other quarrels had their origin in the border inroads and reprisals of poachers or a barbaric setting of the eternal story that was old when Helen launched a thousand ships.