The pitch to which he was aroused was tremendous. All the fighting blood of his breed was up in him and surging through him. This was living., though he did not know it. He was realizing his own meaning in the world; he was doing that for which he was made.... He was justifying his existence, than which life can do no greater; for life achieves its summit when it does to the uttermost that which it was equipped to do.
Jack LondonOf her own experience she had no memory of the thing happening; but in her instinct, which was the experience of all mothers of wolves, there lurked a memory of fathers that had eaten their new-born and helpless progeny.
Jack LondonBut especially he loved to run in the dim twilight of the summer midnights, listening to the subdued and sleepy murmurs of the forest, reading signs and sounds as a man may read a book, and seeking for the mysterious something that called -- called, waking or sleeping, at all times, for him to come.
Jack LondonAnd how have I lived? Frankly and openly, though crudely. I have not been afraid of life. I have not shrunk from it. I have taken it for what it was at its own valuation. And I have not been ashamed of it. Just as it was, it was mine.
Jack London