“Man cannot cherish his existence any longer than life holds out charms to him: when he is wrought upon by painful sensations, or drawn by contrary impulsions, his natural tendency is deranged; he is under the necessity to follow a new route; this conducts him to his end, which it even displays to him as the most desirable good.”

“Was he a bad man or just a foolish one? He didn't feel bad to himself. As a husband he believed himself to be essentially good and loyal. It just wasn't written in a man's nature to be monogamous, that was all. And he owed something to his nature even when his nature was at odds with his desire, which was to stay at home and cherish his wife. It was his nature – all nature, the rule of nature – that was the bastard, not him.”

“The hand descended. Nearer and nearer it came. It touched the ends of his upstanding hair. He shrank down under it. It followed down after him, pressing more closely against him. Shrinking, almost shivering. He still managed to hold himself together. It was a torment, this hand that touched him and violated his instinct. He could not forget in a day all the evil that had been wrought him at the hands of men.”

“When he presses himself to the earth, long and violently, when he urges himself deep into it with his face and his limbs, under fire and with the fear of death upon him, then the earth is his only friend, his brother, he groans out his terror and screams into its silence and safety, the earth absorbs it all and gives him another ten seconds of life, ten seconds to run, then takes hold of him again - sometimes for ever.”

“Man’s life is a line that nature commands him to describe upon the surface of the earth, without his ever being able to swerve from it, even for an instant. He is born without his own consent; his organization does in nowise depend upon himself; his ideas come to him involuntarily; his habits are in the power of those who cause him to contract them; he is unceasingly modified by causes, whether visible or concealed, over which he has no control, which necessarily regulate his mode of existence, give the hue to his way of thinking, and determine his manner of acting. He is good or bad, happy or miserable, wise or foolish, reasonable or irrational, without his will being for any thing in these various states.”

“His act was rather that of a harmless lunatic than an enemy. We were not so new to the country as not to know that the solitary life of many a plainsman had a tendency to develop eccentricities of conduct and character not always easily distinguishable from mental aberration. A man is like a tree: in a forest of his fellows he will grow as straight as his generic and individual nature permits; alone, in the open, he yields to the deforming stresses and tortions that environ him.”