For many years evolutionary biologists and others have been seeking to track down in detail the individual developments that occurred in the emergence of our civilization. They use DNA evidence, the evidence of artifacts from the past, and knowledge of recent human culture. My emphasis here is different. I focus on the current result of human evolution and aim to characterize one aspect, which I call educability. If we are to understand our defining evolutionary story, it would seem hard to evade the question of what is the defining cognitive capability that we have and that has evolved.