Seconds to minutes before --
Adolescence; or, Dude, where's my frontal cortex? --
Back to the crib, back to the womb --
Back to when you were just a fertilized egg --
Centuries to millennia before --
Hierarchy, obedience, and resistance --
Morality and doing the right thing, once you've figured out what that is --
Feeling someone's pain, understanding someone's pain, alleviating someone's pain --
Biology, the criminal justice system, and (oh, why not?) free will --
Appendix 1. Neuroscience 101 --
Appendix 2. Basics of endocrinology --
Appendix 3. Protein basics --
Glossary of abbreviations --
