We will never have a perfect world, but it's not romantic or naive to work toward a better one.

As women are empowered, violence can come down, for a number of reasons. By all measures, men are the more violent gender.

Since the point of erotica is to offer the consumer sexual experiences without having to compromise with the demands of the other sex, it is a window into each sex's unalloyed desires. Pornography for men is visual, anatomical, impulsive, floridly promiscuous and devoid of context and character. Erotica for women is far more likely to be verbal, psychological, reflective, serially monogamous and rich in context and character. Men fantasise about copulating with bodies; women fantasise about making love to people.

The foundation of individual rights is the assumption that people have wants and needs and are authorities on what those wants and needs are. If people's stated desires were just some kind of erasable inscription or reprogrammable brainwashing, any atrocity could be justified.

I never outgrew my conversion to atheism at 13, but at various times was a serious cultural Jew.

The costs of an ignorance of science are nor just practical ones like misbegotten policies, forgone cures, and a unilateral disarmament in national competitiveness. There is a moral cost as well. It is an astonishing fact about our species that we understand so much about the history of the universe. the forces that make it tick, the stuff it's made of; the origin of living things, and the machinery of life. A failure to nurture this knowledge shows a philistine indifference to the magnificent achievements humanity is capable of; like allowing a great work of art to molder in a warehouse.

It's natural to think that living things must be the handiwork of a designer. But it was also natural to think that the sun went around the earth. Overcoming naive impressions to figure out how things really work is one of humanity's highest callings.