This is a quote from the book "The Virtue Of Selfishness" by Ayn Rand
...existence, i.e., to the principle that all of one’s goals, values and actions take place in reality and, therefore, that one must never place any value or consideration whatsoever above one’
s perception of reality. It means a commitment to the principle that all of one’s convictions, values, goals, desires and actions must be based on, derived from, chosen and validated by a proc
ess of thought — as precise and scrupulous a process of thought, directed by as ruthlessly strict an application of logic, as one’s fullest capacity permits. It means one’s acceptance of t...
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