Independence is the recognition of the fact that yours is the responsibility of judgment and nothing can help you escape it — that no substitute can do your thinking, as no pinch-hitter can live your life — that the vilest form of self-abasement and self-destruction is the subordination of your mind to the mind of another, the acceptance of an authority over your brain, the acceptance of his assertions as facts, his say-so as truth, his edicts as middle-man between your consciousness and your existence.
No matter how vast your knowledge or how modest, it is your own mind that has to acquire it. It is only with your own knowledge that you can deal. It is only your own knowledge that you can claim to possess or ask others to consider. Your mind is your only judge of truth — and if others dissent from your verdict, reality is the court of final appeal. Nothing but a man’s mind can perform that complex, delicate, crucial process of identification which is thinking. Nothing can direct the process but his own judgment. Nothing can direct his judgment but his moral integrity.
Live and act within the limit of your knowledge and keep expanding it to the limit of your life. Redeem your mind from the hockshops of authority. Accept the fact that you are not omniscient, but playing a zombie will not give you omniscience — that your mind is fallible, but becoming mindless will not make you infallible — that an error made on your own is safer than ten truths accepted on faith, because the first leaves you the means to correct it, but the second destroys your capacity to distinguish truth from error. In place of your dream of an omniscient automaton, accept the fact that any knowledge man acquires is acquired by his own will and effort, and that that is his distinction in the universe, that is his nature, his morality, his glory.
[An] error is committed by the man who declares that since man must be guided by his own independent judgment, any action he chooses to take is moral if he chooses it. One’s own independent judgment is the means by which one must choose one’s actions, but it is not a moral criterion nor a moral validation: only reference to a demonstrable principle can validate one’s choices.