For most of history, human nature was the domain of philosophers, theologians,
and writers of novels. It was thought to be beyond the realm of mathematics or
science, either because the soul was considered supernatural or because it was
just a hard problem.
But then I think there were two things that happened in the 20th century that
opened the door to the scientific study of human nature.
And now scientists
and mathematicians are expanding the study of human nature, properly exploring
the hard questions that had been examined but never solved by previous
generations of philosophers and theologians.
The first breakthrough was the publication of
The Theory of Games and Economic Behavior by
John von Neumann and
Oskar Morgenstern. That laid the foundations for
game theory. Suddenly scientists had a way to analyze and model how multiple agents could
cooperate or compete in a variety of economic (ie, real-world) scenarios.
The second enabler was the discovery (or more accurately, the first plausible
physical description of)
DNA. The double helix solved what had been a long-standing problem: how genetic
information was passed down in plants and animals--basically anything living
on Earth that we know of.
The understanding of genetics, plus game theory, helped bring about a new
field:
evolutionary psychology. I think the wikipedia definition is good: "Evolutionary psychology
... is a theoretical approach to psychology that attempts to
explain mental and psychological traits -- such as memory, perception, or
language -- as adaptations, that is, as the functional products of natural
selection..."
But let's face it, that's basically the study of human nature, with the
hypothesis (now well-tested) that human nature has evolved as a set of
adaptations.
Given this recent revolution, where a whole field of study was recently opened
up to investigation, what do I (as an outsider to the field) consider the best
books for the layman?
Here is my list, in chronological order:
1976:
The Selfish Gene by
Richard Dawkins. Although not strictly about evolutionary psychology, it is the clearest
book I know on a fundamental issue of evolution: genes evolved for themselves,
not us. It shook up evolutionary biology at the time, and his viewpoint is
still what guides practically all
studies of evolution, whether biological or psychological. It is surprisingly
readable even today.
[As an aside, read the first review on Amazon.com. Clearly that reviewer was
impacted by the implications for human nature as well! Although I think the
reviewer missed the difference between science and religion, and suffered for
years as a result. Evolutionary
psychology has nothing to say about God or His purpose. You can believe in
both.]
1992:
The Third Chimpanzee by
Jared Diamond. The book is subtitled "The Evolution and Future of the Human Animal."
Oddly, his other books such as
Guns, Germs and Steel and
Collapse, seem to be more well-known. But I consider "The Third Chimpanzee" to be his
best work. The chapter names alone tell you that he is addressing key human
behaviors ("How we pick our mates and sex partners", "Why do we smoke, drink,
and use dangerous drugs?"). And the last chapters of the book lay down the basic
themes that he picks up in more detail in his later books.
1994:
The Language Instinct by
Steven Pinker, subtitled "How the Mind Creates Language". Although some reviewers now question his exact theories of language
mechanisms, he is an excellent writer that conveys some key learnings about
language development. One of the reasons this book makes the list is that it
is a fun and engaging read. You start to pick up on how the mind has been built and
evolved from multiple components over time, a theme that led to his next
book...
1997:
How the Mind Works. This book is one of the better surveys, in my mind (no pun intended). Just
as readable as his "The Language Instinct", but now focused on the
computational theory of the mind, rather than language specifically. A great
read!
Honorable Mention
These are books that came to mind, but didn't make my mental list of "best"
books for one reason or another.
1978:
On Human Nature by
Edward O. Wilson. No listing of books on human nature would be complete without it! Although
I found it a good read, I didn't find it as groundbreaking idea-wise as the
other books on the list, or as memorable. But it deserves mention since many
other readers consider it the definitive work on the subject.
1995:
An Anthropologist on Mars by
Oliver Sacks. (Another good title would be
The Man Who Mistook His Wife for a Hat, 1985). Although not about evolutionary psychology, Oliver Sacks has studied
the brain for a long time. If you have spent any time debugging computer
programs, attempting to figure out what is broken inside by observing external
behavior, you will be powerfully impacted by Sacks' description of how he had
to debug the neurological conditions of his patients. Great works, and they
don't make the list only because they are slightly off-topic.
After reading "An Anthropologist on Mars", I was struck by some of the
similarities between myself and the title character, who was autistic but
functional (and successful!). I wondered if I was autistic! So I took some
online autism tests like
this one and quickly reassured myself that no, I am not autistic.
Most Importantly...
Most importantly, keep a sense of perspective. As far as evolutionary
psychology has taken us, and as far as it has to go, I'm surprised at how we
keep coming back to the basics. And for that, you can't beat Voltaire's
Candide. It is short, and remarkably relevant after almost 250 years (especially if
you consider the context in which it was written). If you could
only read one book on human nature, this is probably it.
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