Quote
"As a human being, you have no choice about the fact that you need a philosophy. Your only choice is whether you define your philosophy by a conscious, rational, disciplined process of thought and scrupulously logical deliberation -- or let your subconscious accumulate a junk heap of unwarranted conclusions, false generalizations, undefined contradictions, undigested slogans, unidentified wishes, doubts, and fears, thrown together by chance, but integrated by your subconscious into a kind of mongrel philosophy and fused into a single, solid weight: self doubt, like a ball and chain in the place where your mind's wings should have grown." (Ayn Rand)
Summary of text
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Source
Leonard Peikoff, Objectivism: The Philosophy of Ayn Rand, New York: Dutton - Penguin Books, 1991.