Geoffrey Miller said this quote

Scientific theories never dictate human values, but they can often cast new light on ethical issues. From a sexual selection viewpoint, moral philosophy and political theory have mostly been attempts to shift male human sexual competitiveness from physical violence to the peaceful accumulation of wealth and status. The rights to life, liberty, and property are cultural inventions that function, in part, to keep males from killing and stealing from one another while they compete to attract sexual partners.

~ Geoffrey Miller

Men write more books. Men give more lectures. Men ask more questions after lectures. Men post more e-mail to Internet discussion groups. To say this is due to patriarchy is to beg the question of the behavior's origin. If men control society, why don't they just shut up and enjoy their supposed prerogatives? The answer is obvious when you consider sexual competition: men can't be quiet because that would give other men a chance to show off verbally. Men often bully women into silence, but this is usually to make room for their own verbal display. If men were dominating public language just to maintain patriarchy, that would qualify as a puzzling example of evolutionary altruism—a costly, risky individual act that helps all of one's sexual competitors (other males) as much as oneself. The ocean of male language that confronts modern women in bookstores, television, newspapers, classrooms, parliaments, and businesses does not necessarily come from a male conspiracy to deny women their voice. It may come from an evolutionary history of sexual selection in which the male motivation to talk was vital to their reproduction.

~ Geoffrey Miller

Imagine a young Isaac Newton time-travelling from 1670s England to teach Harvard undergrads in 2017. After the time-jump, Newton still has an obsessive, paranoid personality, with Asperger’s syndrome, a bad stutter, unstable moods, and episodes of psychotic mania and depression. But now he’s subject to Harvard’s speech codes that prohibit any “disrespect for the dignity of others”; any violations will get him in trouble with Harvard’s Inquisition (the ‘Office for Equity, Diversity, and Inclusion’). Newton also wants to publish Philosophiæ Naturalis Principia Mathematica, to explain the laws of motion governing the universe. But his literary agent explains that he can’t get a decent book deal until Newton builds his ‘author platform’ to include at least 20k Twitter followers – without provoking any backlash for airing his eccentric views on ancient Greek alchemy, Biblical cryptography, fiat currency, Jewish mysticism, or how to predict the exact date of the Apocalypse.Newton wouldn’t last long as a ‘public intellectual’ in modern American culture. Sooner or later, he would say ‘offensive’ things that get reported to Harvard and that get picked up by mainstream media as moral-outrage clickbait. His eccentric, ornery awkwardness would lead to swift expulsion from academia, social media, and publishing. Result? On the upside, he’d drive some traffic through Huffpost, Buzzfeed, and Jezebel, and people would have a fresh controversy to virtue-signal about on Facebook. On the downside, we wouldn’t have Newton’s Laws of Motion.

~ Geoffrey Miller