We have only two sources of information about the character of the people around us: we judge them by what they do and by what they say (particularly the first).
Ayn RandThrough all the centuries of the worship of the mindless, whatever stagnation humanity chose to endure, whatever brutality to practice-it was only by the grace of the men who perceived that wheat must have water in order to grow, that stones laid in a curve will form an arch, that two and two make four, that love is not served by torture and life is not fed by destruction-only by the grace of those men did the rest of them learn to experience moments when they caught the spark of being human.
Ayn RandLive 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.
Ayn Rand