Later, though living his life mainly in the woods and mountains, he came to know that the cities were not all bad; that a man might live in a city and still be a man. Accustomed to do battle with natural forces, he was attracted by the commercial battle with social forces. The masters of marts and exchanges dazzled but did not blind him, and he studied them, and strove to grasp the secrets of their strength. And further, in token that some good did come out of Nazareth, in the full tide of manhood he took to himself a city-bred woman. But he still yearned for the edge of things, and the leaven in his blood worked till they went away, and above the Dyea Beach, on the rim of the forest, built the big log trading-post. And here, in the mellow of time, he got a proper focus on things and unified the phenomena of society precisely as he had already unified the phenomena of nature. There was naught in one which could not be expressed in terms of the other. The same principles underlaid both; the same truths were manifest of both. Competition was the secret of creation. Battle was the law and the way of progress. The world was made for the strong, and only the strong inherited it, and through it all there ran an eternal equity. To be honest was to be strong. To sin was to weaken. To bluff an honest man was to be dishonest. To bluff a bluffer was to smite with the steel of justice. The primitive strength was in the arm; the modern strength in the brain. Though it had shifted ground, the struggle was the same old struggle. As of old time, men still fought for the mastery of the earth and the delights thereof. But the sword had given way to the ledger; the mail-clad baron to the soft-garbed industrial lord, and the centre of imperial political power to the seat of commercial exchanges. The modern will had destroyed the ancient brute. The stubborn earth yielded only to force. Brain was greater than body. The man with the brain could best conquer things primitive. He did not have much education as education goes. To the three R's his mother taught him by camp-fire and candle-light, he had added a somewhat miscellaneous book-knowledge; but he was not burdened with what he had gathered. Yet he read the facts of life understandingly, and the sobriety which comes of the soil was his, and the clear earth-vision.