Robin Dunbar

“It's perhaps not so much how your amygdala is tuned that makes you politically extreme, but that your intrinsic nervousness makes you more responsive to things that might seem to threaten your particular social world. Education probably plays an important role in dampening that response by allowing the brain's frontal lobes (where much of the brain's conscious work goes on) to counteract the emotional responses with a more considered view, so explaining why education is invariably the friend of liberal politics.”
― Robin Dunbar, How Many Friends Does One Person Need?

“In primates at least, infanticide seems to have been the crucial factor driving the evolution of monogamous mating systems.”
― Robin Dunbar, Human Evolution: A Pelican Introduction