Scientists are just as vulnerable to wishful thinking, just as likely to be tempted by base motives, just as venal and gullible and forgetful as the rest of humankind. Scientists don't consider themselves to be saints; they don't even pretend to be priests (who according to tradition are supposed to do a better job than the rest of us at fighting off human temptation and frailty). Scientists take themselves to be just as weak and fallible as anybody else, but recognizing those very sources of error in themselves and in the groups to which they belong, they have devised elaborate systems to tie their own hands, forcibly preventing their frailties and prejudices from infecting their results.

People ache to believe that we human beings are vastly different from all other species — and they are right! We are different. We are the only species that has an extra medium of design preservation and design communication: culture. … We have language, the primary medium of culture... In a few short millennia — a mere instant in biological time — we have already used our new exploration vehicles to transform not only our planet but the very process of design development that created us.

There is a familiar trio of reactions by scientists to a purportedly radical hypothesis: (a) "You must be out of your mind!", (b) "What else is new? Everybody knows that!", and, later — if the hypothesis is still standing — (c) "Hmm. You *might* be on to something!" Sometimes these phases take years to unfold, one after another, but I have seen all three emerge in near synchrony in the course of a half-hour's heated discussion following a conference paper.

From what can "ought" be derived. The most compelling answer is this: ethics must be somehow based on an appreciation of human nature — on a sense of what a human being is or might be, and on what a human being might want to have or want to be. If that is naturalism, then naturalism is no fallacy. No one could seriously deny that ethics is responsive to such facts about human nature. We may just disagree about where to look for the most compelling facts about human nature -n novels, in religious texts, in psychological experiments, in biological or anthropological investigations. The fallacy is not naturalism but, rather, any simple-minded attempt to rush from facts to values. In other words, the fallacy is greedy reductionism of values to facts, rather than reductionism considered more circumspectly, as the attempt to unify our world-view so that out ethical principles don't clash irrationally with the way the world is.

The methods of science aren't foolproof, but they are indefinitely perfectible. Just as important: there is a tradition of criticism that enforces improvement whenever and wherever flaws are discovered. The methods of science, like everything else under the sun, are themselves objects of scientific scrutiny, as method becomes methodology, the analysis of methods. Methodology in turn falls under the gaze of epistemology, the investigation of investigation itself — nothing is off limits to scientific questioning. The irony is that these fruits of scientific reflection, showing us the ineliminable smudges of imperfection, are sometimes used by those who are suspicious of science as their grounds for denying it a privileged status in the truth-seeking department — as if the institutions and practices they see competing with it were no worse off in these regards. But where are the examples of religious orthodoxy being simply abandoned in the face of irresistible evidence? Again and again in science, yesterday's heresies have become today's new orthodoxies. No religion exhibits that pattern in its history.

The juvenile sea squirt wanders through the sea searching for a suitable rock or hunk of coral to cling to and make its home for life. For this task, it has a rudimentary nervous system. When it finds its spot and takes root, it doesn't need its brain anymore, so it eats it! (It's rather like getting tenure.)* * The analogy between the sea squirt and the associate professor was first pointed out, I think, by the neuroscientist Rodolfo Llinas.

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Of all the mind tools we acquire in the course of furnishing our brains from the stockpiles of culture, none are more important, of course, than words — first spoken, then written. Words make us more intelligent by making cognition easier, in the same way (many times multiplied) that beacons and landmarks make navigation in the world easier for simple creatures. Navigation in the abstract multidimensional world of ideas is simply impossible without a huge stock of movable, memorable landmarks that can be shared, criticized, recorded, and looked at from different perspectives.

The trouble with the canons of scientific evidence [...] is that they virtually rule out the description of anything but oft-repeated, oft-observed, stereotypic behavior of a species, and this is just the sort of behavior that reveals no particular intelligence at all — all this behavior can be more or less plausibly explained as the effects of some humdrum combination of "instinct" or tropism and conditioned response. It is the novel bits of behavior, the acts that couldn't plausibly be accounted for in terms of prior conditioning or training or habit, that speak eloquently of intelligence; but if their very novelty and unrepeatability make them anecdotal and hence inadmissible evidence, how can one proceed to develop the cognitive case for the intelligence of one's target species?

Homunculi are bogeymen only if they duplicate entire the talents they are rung in to explain. If one can get a team or committee of relatively ignorant, narrow-minded, blind homunculi to produce the intelligent behaviour of the whole, this is progress.

What [is] the prevailing attitude today among those who call themselves religious but vigorously advocate tolerance? There are three main options, ranging from the disingenuous Machiavellian-- <blockquote>1. As a matter of political strategy, the time is not ripe for candid declarations of religious superiority, so we should temporize and let sleeping dogs lie in hopes that those of other faiths can gently be brought around over the centuries.</blockquote>--through truly tolerant Eisenhowerian "Our government makes no sense unless it is founded on a deeply religious belief — and I don't care what it is" -- <blockquote>2. It really doesn't matter which religion you swear allegiance to, as long as you have some religion.</blockquote>--to the even milder Moynihanian benign neglect-- <blockquote>3. Religion is just too dear to too many to think of discarding, even though it really doesn't do any good and is simply an empty historical legacy we can afford to maintain until it quietly extinguishes itself sometime in the distant and unforeseeable future.</blockquote>It it no use asking people which they choose, since both extremes are so undiplomatic we can predict in advance that most people will go for some version of ecumenical tolerance whether they believe it or not. ... We've got ourselves caught in a hypocrisy trap, and there is no clear path out. Are we like families in which the adults go through all the motions of believing in Santa Claus for the sake of the kids, and the kids all pretend still to believe in Santa Claus so as not to spoil the adults' fun? If only our current predicament were as innocuous and even comical as that! In the adult world of religion, people are dying and killing, with the moderates cowed into silence by the intransigence of the radicals in their own faiths, and many afraid to acknowledge what they actually believe for fear of breaking Granny's heart, or offending their neighbors to the point of getting run out of town, or worse. If this is the precious meaning our lives are vouchsafed thanks to our allegiance to one religion or another, it is not such a bargain, in my opinion. Is this the best we can do? Is it not tragic that so many people around the world find themselves enlisted against their will in a conspiracy of silence, either because they secretly believe that most of the world's population is wasting their lives in delusion (but they are too tenderhearted — or devious — to say so), or because they secretly believe that their own tradition is just such a delusion (but they fear for their own safety if they admit it)?

Thanks to technology, what almost anybody can do has been multiplied a thousandfold, and our moral understanding about what we ought to do hasn't kept pace. … You can have a test-tube baby or take a morning-after pill to keep from having a baby; you can satisfy your sexual urges in the privacy of your room by downloading Internet pornography, and you can keep your favorite music for free instead of buying it; you can keep your money in secret offshore bank accounts and purchase stock in cigarette companies that are exploiting impoverished Third World countries; and you can lay minefields, smuggle nuclear weapons in suitcases, make nerve gas, and drop "smart bombs" with pinpoint accuracy. Also, you can arrange to have a hundred dollars a month automatically sent from your bank account to provide education for ten girls in an Islamic country who otherwise would not learn to read and write, or to benefit a hundred malnourished people, or provide medical care for AIDS sufferers in Africa. You can use the Internet to organize citizen monitoring of environmental hazards, or to check the honesty and performance of government officials — or to spy on your neighbors. Now, what ought we to do?