This is a quote from the book "The ​Virtue Of Selfishness" by Ayn Rand
...de world; it lasts for the duration of the immediate moment, as long as the stimulus lasts and no longer. Sensations are an automatic response, an automatic form of knowledge, which a consciousn ess can neither seek nor evade. An organism that possesses only the faculty of sensation is guided by the pleasure -pain mechanism of its body, that is: by an automatic knowledge and an automati c code of values. Its life is the standard of value directing its actions. Within the range of action possible to it, it acts automatically to further its life and cannot act for its own destruc...
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