This is a quote from the book "The Virtue Of Selfishness" by Ayn Rand
...l chaos; it reveals a fallacy which may be termed “the fallacy of the frozen abstraction” and which consists of substituting some one particular concrete for the wider abstract class to whic
h it belongs — in this case, substituting a specific ethics (altruism) for the wider abstraction of “ethics.” Thus, a man may reject the theory of altruism and assert that he has accepted
a rational code — but, failing to integrate his ideas, he continues unthinkingly to approach ethical questions in terms established by altruism.
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More often, however, that psychol...