"so natural selection is still at work, and some evolutionary biologists believe it would come as no surprise to find many more examples. They point out that we live in an era of rapid technological progress, and hence a fast changing environment, exactly the conditions under which you'd expect natural selection to act."
"there has been, and still is, positive feedback between our culture and our genes that led to the rapid evolution of the most characteristic human attribute, the mind."
"the defining feature of human evolution is that our minds have shaped our environment, which in turn has led to evolutionary changes in the way we think"
"in the modern world nobody can do everything, so the advantage lies in being good at something that not many others can do well"