Psychopath

Definition and stakes

Portrait of Boris Sidis Boris Sidis,  Nervous Ills, Their Cause and Cure

“ Even in the best of patients one can find glimpses into the depths of the psychopathic soul which is nothing but the immense egotism of the beast, worsted in the struggle for existence, tortured by the agonizing pangs of the fear instinct.
In the vanity, conceit, arrogance, and overbearing attitude towards others, friend or stranger, as well as in the total indifference to the suffering of his intimate friends and acquaintances, we once more find the expression of that terrible selfishness which obsesses the psychopathic patient.
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Source: Gutenberg

Portrait of Frank Belknap Long Frank Belknap Long,  The horror expert (1961)

“ A psychopathic killer wouldn't have held back that way. The presence of others would have added fuel to the flames. He'd have realized at once that there were other victims right at hand and would have killed and killed again, in an uncontrollable frenzy, his guilt feelings, his secret desire to be caught and punished, making him welcome the added danger and risk.
And if he was the other kind, the completely sane kind—were murderers ever completely sane?—concerned about saving his own skin, wouldn't he have shot her on the street, the instant he saw that she was heading for the restaurant?
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Source: Gutenberg

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