Steve Stewart-Williams

"Just as our tools evolved culturally to fit our hands, so too our social roles evolved culturally to fit persisting aspects of the human mind. Roles that jar too violently with human nature are unlikely to persist for long, at least without the application of significant social force. If this is correct, it raises the possibility that some social roles might have evolved culturally to fit traits that, although found in both sexes, are more common in one than the other. This is emphatically not to say that there are some male roles and some female roles. But it is to suggest that there might be some social roles that suit more men than women, and others that suit more women than men — not just because of evolved physical differences but because of evolved psychological differences as well."

"Imagine that a zoologist from Mars was sent to Earth to study elephants, and that it had never seen one before. Its initial observation upon seeing a herd of elephants for the first time would presumably not be: “Wow! On average, the males are somewhat larger than the females!” It would be: “Wow! Those are large animals!” A follow-up observation would be the average sex difference in size. However, this would be a qualification to the initial observation — a peripheral rather than a central claim about the morphology of elephants. If, in its subsequent report, the Martian zoologist began by highlighting the sex difference and barely mentioned that elephants are, first and foremost, large animals, we should not be surprised if other Martians got the wrong idea."

"The distinction between central and peripheral claims is applicable to many aspects of human sexuality. Consider, for instance, the emotion of jealousy. Evolutionary psychologists place a strong emphasis on sex differences in this domain. The standard claim is that men are more worried by a partner’s sexual infidelity than emotional infidelity, whereas women are more worried by a partner’s emotional infidelity... [However] the overwhelming trend is that most men and most women are extremely upset by both sexual and emotional infidelity. This suggests that the central EP claim regarding jealousy should be “Human beings evolved to experience jealousy in romantic relationships” rather than “Men and women evolved different patterns of jealousy.” The latter statement is true but should be considered a qualification to the former: a peripheral rather than a central claim. To stress the sex difference alone would be like observing that male elephants are bigger than females while steadfastly neglecting to mention that all adult elephants are large compared to most terrestrial animals. It would almost certainly foster an inaccurate view."

"A similar analysis applies within the realm of mate preferences. Several commentators pointed out that sex differences in human mate preferences are generally quite small... As such, the central claim in EP [evolutionary psychology] should probably be "Human beings evolved to put a fair amount of weight on good looks in a mate" rather than "Men evolved to put more weight on good looks than women." Again, the latter statement is true but potentially misleading. This sounds like a contradiction, but it is not; the statement is misleading if it is given undue weight."

"When it comes to the traits we consider most important in a long-term mate, human beings are largely monomorphic. This is one of the most significant findings of these studies; however, it is easily overlooked when the discussion becomes fixated on traits that people consider less important but where sex differences are found. By shining a spotlight on these traits, we may create an inaccurate picture of our species, even though the differences are real. Our picture of human nature may be built on a foundation of exceptions to the rule. The rule — the fact that males and females in our species are surprisingly similar in many ways — may be relegated to the background. By taking genuine differences and then exaggerating their importance, our picture of our evolved nature may become a caricature: It may contain a recognizable grain of truth but distort its object."

"A danger in emphasizing mean values for each sex is that these values may be projected onto all or most normally developing men and women. The mean may be treated as a description of the typical group member, despite the fact that the majority of individuals fall above or below it. Psychologists do make some effort to stress that means cannot be attributed to all members of any group, as evidenced by the fact that we often append the phrase “on average” to our descriptions of mean differences. But is this enough? Consider again the robust sex difference in willingness to engage in casual sex: The mean SO [sociosexuality] score for men is higher than that for women. What does this tell us, though, about individual men and women? It clearly does not tell us that all men are interested in casual sex and that all women are not. However, given the degree of overlap between the male and female distributions, it also does not tell us that a large majority of men are more interested in casual sex than a large majority of women. That is, it is not accurate to say even that “men are typically more interested in casual sex than women, but there are of course exceptions.” Here is what the data that the means are drawn from actually tell us:"

"If this is not what springs immediately to mind as soon as the words “on average” are appended to a description of mean differences, then the words “on average” have not rectified the damage done by the use of means to describe populations of varied individuals."

"This is especially important when addressing less statistically savvy audiences. Such audiences could perhaps be encouraged to think of two normal distributions, one representing males and the other females. Instead of imagining that natural selection creates two distinct psychological types — a male type and a female type, described by the mean values for each group — they could be encouraged to imagine that natural selection pushes the male and female distributions closer together or further apart. This simple expedient may help people to visualize the effects of natural selection on average sex differences without at the same time losing sight of the variation within each sex."

"Evolutionary theory answers one of the most profound and fundamental questions human beings have ever asked themselves, a question that has plagued reflective minds for as long as reflective minds have existed in the universe: why are we here?"

"Even in the age of science, we understand the motions of the distant, ancient stars better than we understand the organism observing them: ourselves."

"The starting point for evolutionary psychology is the idea that human beings are animals, and that like all animals, we’re products of natural selection. This is true of our bodies, but it’s also true of our minds."

"Humans are as dependent on culture as we are on oxygen; without it, we’re as naked and vulnerable as a crab without a shell."

"We’re clusters of chemical reactions that contemplate deep truths about the nature of reality."

"The year 1838 represents an important milestone for the planet Earth. For this was the year in which a tiny fragment of the Earth – a fragment known as Charles Darwin – answered an ancient and bewildering question: Why are we here?"

"Nature isn’t just a bloodbath; it’s also a vast, unending orgy."

"The evolutionary explanation for the peacock’s tail has an interesting implication, namely that the mind of one sex can help shape the body of the other."

"Does female orgasm have an evolutionary function? Ironically, scientists have yet to come to a satisfying conclusion about this matter."

"People who object to the by-product hypothesis [for female orgasm] are doing something strange: They're saying that it's hugely important to them that female orgasm turns out to be an adaptation, like vomiting, cobra venom, and the scorpion's stinger, rather than a "mere" cultural invention, like science, medicine, and the Universal Declaration of Human Rights."

"Thus, a curious fact about natural selection is that, even though it’s a completely mindless process – a process without foresight or understanding – it has given rise to creatures that have minds, that have foresight, and that even have some basic understanding of the universe of which they’re a part."

"Psychology has made a lot less progress than it could have because too many psychologists know too little about other animals."

"The Nurture Only theory asks us to believe not only that selection eliminated the [sex] differences for reasons unknown, but that learning and culture then coincidentally reproduced exactly the same differences in every culture on record. This is not a compelling thesis."

"Seen through a Darwinian lens, men’s stronger interest in a partner’s looks is initially quite mysterious. In most species, it’s the females that care more about looks. Among peacocks, for instance, peahens will only mate with the males with the sexiest tails; males, in contrast, are less shallow and will mate with any female who’ll have them. If peacocks had pornography, it would be the females, not the males, that would spend their time staring at images of the other sex, and the males that would complain about being treated as sex objects. And what’s true of peacocks is true as well of most animals. In our species, however, it’s the other way around. Why?"

""Once a suitable mate is located, humans engage in various peculiar mating rituals. The male, for example, may give the female a bundle of plant genitals (or “flowers”), or the pair may take turns making noises at each other while imbibing fermented plant juice." (Quote from an alien scientists report on our species.)"

"Why would the omnipotent creator of the entire universe be so deeply attached to a bipedal, tropical ape? Why would He take on the bodily form of one of these peculiar tailless primates? Why would such a magnificent being be so obsessively, nit-pickingly preoccupied with trivial matters such as the dress code and sexual behaviour of one mammalian species, especially its female members?"

"The idea that the Biblical stories are symbolic is charitable to the point of absurdity. What would we think of a university professor who, happening upon unambiguous errors in a favourite student’s work, concluded that the student was speaking symbolically and awarded top marks?"

"Some claim that life, the universe, and mind are miraculous. My conclusion is that these things are really, really amazing, but that they’re not miraculous (unless by miraculous, you just mean ‘really, really amazing’)."

"Viewed from an evolutionary perspective, mind is not the cause of the order in nature; mind is an example of the order in nature - something to be explained rather than the explanation for everything else."

"People kill nonhuman animals for food, for their skins, and sometimes just for fun. We enslave animals and force them to work for us. We experiment on them and justify their suffering in terms of our advantage. Because most of us want to be able to view ourselves as good people (and, perhaps more importantly, because we want others to view us as good people), we may be motivated to view nonhumans in such a way that these activities are rendered morally unproblematic. One way to do this is to view other animals as utterly different from us."

"Bertrand Russell once pointed out that ‘People are more unwilling to give up the word “God” than to give up the idea for which the word has hitherto stood’. Evolutionary theory may not persuade everyone to give up the word. However, to the extent that it encourages people to alter its meaning beyond recognition, it could be argued that God has nonetheless been a casualty of Darwin’s theory."

"It seems that the evolutionist must conclude, along with the writer Vladimir Nabokov, that ‘our existence is but a brief crack of light between two eternities of darkness’. Brains that think otherwise – brains that deny they are brains and believe instead that they are eternal souls - are brains that hold false beliefs about themselves."

"To a hypothetical alien with a vastly superior intellect to our own, human minds would be classed as intermediate forms between the mindless and the fully minded."

"When you contemplate the universe, part of the universe becomes conscious of itself."

"Around 13.8 billion years after the Big Bang, and almost four billion years since life first evolved, something strange began to happen: Tiny parts of the universe became conscious, and came to know something about themselves and the universe of which they are a part... Eventually, some of these tiny parts of the universe - the parts we call ‘scientists’ and ‘scientifically-informed laypeople’ - came to understand the Big Bang and the evolutionary process through which they had come to exist. After an eternity of unconsciousness, the universe now had some glimmering awareness that it existed and some understanding of where it had come from."

"It may be the fate of the universe to spend an eternity in darkness, save one brief flash of self-awareness in the middle of nowhere."

"Certainly, the human-animal distinction is still workable; after all, we rarely make errors in assigning entities to one category or the other. But after Darwin, the distinction suddenly seems arbitrary – as arbitrary as the equally workable distinction between, say, turtles and non-turtles."

"It is not clear that people have fully taken on board the idea that humans are animals. If they had, then perhaps academic disciplines such as sociology and anthropology would be viewed as specialist branches of zoology; medical doctors would be viewed as a subtype of veterinarians (one that specializes in tending to the health needs of just one species); human rights would be viewed as a subset of animal rights; and the socialization of children would be viewed as one example of the training or domestication of animals (making parents and teachers a subtype of animal trainers)."

"A Ku Klux Klan member would be mortified to learn that he was actually a Black man. Many people’s reaction to learning that they are actually animals, or actually apes, is the same."

"Some people worry that to say we are nothing but matter is to deny that we think or feel. It’s not. The strange fact is that, when suitably arranged, matter thinks and feels."

"Changes in the inhabitants of the earth do not reflect a constant process of improvement in the design of organisms, any more than changes in fashion over the years reflect a constant process of improvement in the quality of clothing."

"One could even argue that our creative endeavours and achievements and small acts of kindness are all the more impressive against the backdrop of a purposeless universe."

"The claim that women have a stronger average parental urge than men is sometimes viewed as a sexist generalization. But it’s only sexist if we take a dim view of the trait in question: the parental urge. One could turn the accusation on its head: Those who view the evolutionist’s claim (that women are more parental than men) as sexist are actually being sexist themselves, because they’re taking a negative view of a trait that’s usually found more strongly in females than males. They are therefore prizing prototypically masculine traits more highly than prototypically feminine ones."

"Even if we accept the basic logic of the natural law argument against homosexuality, we have to ask just how wicked a sin it could really be. People sometimes use metal coat hangers as impromptu TV aerials, a purpose for which they were not designed. Likewise, children sometimes climb up slides instead of sliding down them. Are these activities heinous infractions of the moral law? Are they an insult to the people who designed the coat hangers or the slides?"

"People often assume that anyone who studies evolution thinks that everything should be about the survival of the fittest. However, this makes no more sense than assuming that anyone who studies glaciers thinks that everything should be done really, really slowly."

"We like to think that reason is the supreme adaptation; that rational animals deserve preferential treatment; and that nonhumans, because they don’t have reason, have no intrinsic moral value. However, after Darwin, this is no different and no more convincing than, say, an elephant thinking that trunks are the supreme adaptation; that animals with trunks deserve preferential treatment; and that non-elephants, because they don’t have trunks, have no intrinsic moral value."

"If we decide – and this is our decision; it’s not imposed on us from above – if we decide that reducing the amount of suffering in the world is a good ethical principle to live by, then it becomes entirely unjustified and arbitrary to extend this principle to human beings but not also to extend it to other animals capable of suffering. Why should the suffering of nonhumans be less important than that of humans? Surely a universe with less suffering is better than one with more, regardless of whether the locus of suffering is a human being or not, a rational being or not, a member of the moral community or not. Suffering is suffering, and these other variables are morally irrelevant."

"The amount of suffering and pain caused by the tyranny of human beings over other animals (particularly in food production) far exceeds that caused by sexism, racism, or any other existing form of discrimination, and for this reason, the animal liberation movement is the most important liberation movement on the face of the planet today."

"Several years ago, the Foundation for Biomedical Research ran an ad campaign in support of medical experimentation on nonhuman animals. The ad featured a photograph of a group of animal rights protestors under the caption: ‘Thanks to animal research, they’ll be able to protest 20.8 years longer.’ But imagine a parallel universe in which medical research is conducted on black people, and in which an equivalent foundation employs an equivalent argument: ‘Thanks to research on black people, these white protesters will be able to protest against experimentation on black people 20.8 years longer’! Would this justify experimentation on black people? Obviously not! We would immediately reject the argument as founded on a deeply racist assumption, namely, that the costs inflicted on ‘mere’ black people are justified by the benefits produced for whites. But the original argument is founded on an equivalently speciesist assumption: that the costs inflicted on ‘mere’ animals are justified by the benefits produced for us."

"Tying morality to religion is a little like transporting a precious cargo on a sinking ship. What happens when the child grows up and starts doubting the factual claims of the religion? The cargo may be lost with the ship."

"If religion doesn't make people good, why do people think that it does? Simple: Because religion teaches that it makes people good. It’s part of its sales pitch. But it's also quite possibly untrue."

"Even in a pointless universe, pointless happiness and pleasures are surely preferable to pointless suffering."