It is a profoundly erroneous truism, repeated by all copy books and by eminent people when they are making speeches, that we should cultivate the habit of thinking of what we are doing. The precise opposite is the case. Civilization advances by extending the number of important operations which we can perform without thinking about them.
Whitehead, Alfred North (1861 - 1947), An Introduction to Mathematics.
Freedom is understood in contrast to its various opposites. I can be free as opposed to being presently coerced. I can be free as opposed to being under some other person's general control. I can be free as opposed to being subject to delusions or insanity. I can be free as opposed to being ruled by the state in denial of ordinary personal liberties. I can be free as opposed to being in jail or prison. I can be free as opposed to living under unusually heavy personal obligations. I can be free as opposed to being burdened by bias or prejudice. I can even be free (or free spirited) as opposed to being governed by ordinary social conventions. The question that needs to be asked, and which hardly ever is asked, is whether I can be free as opposed to being causally determined. Given that some kind of causal determinism is presupposed in the very concept of human action, it would be odd if this were so. Why does anyone think that it is?
-- David Hill
Try looking at your mind as a wayward puppy that you are trying to paper train. You don't drop-kick a puppy into the neighbor's yard every time it pisses on the floor. You just keep bringing it back to the newspaper. So I keep trying to gently bring my mind back to what is really there to be seen, maybe to be seen and noted with a kind of reverence. Because if I don't learn to do this, I think I'll keep getting things wrong.
-Anne Lamott, Bird by Bird
I almost believe we are ghosts, all of us. It's not just what we inherit from our fathers and mothers that walks again in us - it's all sorts of dead old ideas and dead beliefs and things like that. They don't exactly live in us, but there they sit all the same and we can't get rid of them. All I have to do is pick up a newspaper, and I see ghosts lurking between the lines. I think there are ghosts everywhere you turn in this country - as many as there are grains of sand - and then there we all are, so abysmally afraid of the light.
-- Ibsen, 1881
[Mathematical methods of inference] literally have no content; long division can calculate miles per gallon, or it can calculate income per capita. The statistical tools of experimental psychology were borrowed from agronomy, where they were invented to gauge the effects of different fertilizers on crop yields. The tools work just fine in psychology, even though, as one psychological statistician wrote, "we do not deal in manure, at least not knowingly."
-- Steven Pinker, How The Mind Works
Our imagination is stretched to the utmost, not, as in fiction, to imagine things which are not really there, but just to comprehend those things which are there.
-- Richard Feynman The Character of Physical Law
"The account of perception that’s starting to emerge is what we might call the “brain’s best guess” theory of perception: perception is the brain’s best guess about what is happening in the outside world. The mind integrates scattered, weak, rudimentary signals from a variety of sensory channels, information from past experiences, and hard-wired processes, and produces a sensory experience full of brain-provided color, sound, texture, and meaning. ... Perception is inference."[emphasis added]
Leibniz, Gottfried Wilhelm (1646-1716): Although the whole of this life were said to be nothing but a dream and the physical world nothing but a phantasm, I should call this dream or phantasm real enough, if, using reason well, we were never deceived by it.
In J. R. Newman (ed.), The World of Mathematics, New York: Simon and Schuster, 1956.
Even if man really were nothing but a piano-key, even if this were proved to him by natural science and mathematics, even then he would not become reasonable, but would purposely do something perverse out of simple ingratitude, simply to gain his point.
—Fyodor Dostoyevsky, Notes from the Underground
(Self-promotion: this is the epigraph to the novella I'm working on, which is not really about rationality but is about what we're pleased to call "human nature", and which you may read the beginning of here if so inclined.)
Feedback phenomena and human intuition are uncomfortable bedfellows. When people dislike where an equilibrium argument takes them, it is therefore unsurprising that they invent simpler arguments that lead to more palatable conclusions. However, the first principle of rational thought is never to allow your preferences to influence your beliefs.
Ken Binmore
Do not believe in anything simply because you have heard it. Do not believe in anything simply because it is spoken and rumored by many. Do not believe in anything simply because it is found written in your religious books. Do not believe in anything merely on the authority of your teachers and elders. Do not believe in traditions because they have been handed down for many generations. But after observation and analysis, when you find that anything agrees with reason and is conducive to the good and benefit of one and all, then accept it and live up to it.
-Buddha
"Most men are so thoroughly subjective that nothing really interests them but themselves. They always think of their own case as soon as any remark is made, and their whole attention is engrossed and absorbed by the merest chance reference to anything which affects them personally, be it never so remote: with the result that they have no power left for forming an objective view of things, should the conversation take that turn; neither can they admit any validity in arguments which tell against their interest or their vanity."
Arthur Schopenhauer (1788-1860)
The problem with engineers is that they tend to cheat in order to get results.
The problem with mathematicians is that they tend to work on toy problems in order to get results.
The problem with program verifiers is that they tend to cheat on toy programs in order to get results.
the UNIX fortune-cookie program; original source unknown
It cannot be that axioms established by argumentation should avail for the discovery of new works, since the subtlety of nature is greater many times over than the subtlety of argument. But axioms duly and orderly formed from particulars easily discover the way to new particulars, and thus render sciences active.
Francis Bacon
"It only stands to reason that where there's sacrifice, there's someone collecting the sacrificial offerings. Where there's service, there is someone being served. The man > who speaks to you of sacrifice is speaking of slaves and masters, and intends to be the master."
~ Ayn Rand, Atlas Shrugged
[ I'm actually not too fond of objectivism, but this quote is spot-on ]
Your strength as a rationalist is your ability to be more confused by fiction than by reality.
--Eliezer (http://lesswrong.com/lw/if/your_strength_as_a_rationalist/)
Whenever, then, anything in nature seems to us ridiculous, absurd or evil, it is because we have but a partial knowledge of things, and are in the main ignorant of order and coherence of nature as a whole, and because we want everything to be arranged according to dictates of our own reason; although in fact, what our reason pronounces bad is not as bad as regards the order and laws of universal nature, but only as regards the order and laws of our own nature taken separately.... As for the terms good and bad, they indicate nothing positive considered in t...
A saint may fight against a knave. Alternatively, two knaves may fight. A dragon may be slain by St. George, or by another dragon. In the former case you are left with St. George, who deserves a reward for slaying his dragon. In the latter case you are faced with a dragon, which did only what dragons do. He was probably the bigger of the two, and now he is even bigger than that.
-- Mencius Moldbug, teaching us how to argue any point persuasively. (In this example he's talking about the Allies vs Nazi Germany.)
Mencius said, "Whenever anyone told him that he had made a mistake, Tzu-lu was delighted. Whenever he heard a fine saying, Yü bowed low before the speaker. The Great Shun was even greater. He was ever ready to fall into line with others, giving up his own ways for theirs, and glad to take from others that by which he could do good."
A monthly thread for posting any interesting rationality-related quotes you've seen recently on the Internet, or had stored in your quotesfile for ages.