The first thing we learn from studying our own circuitry is a simple lesson: most of what we do and think and feel is not under our conscious control.

The brain runs its show incognito.

There is a looming chasm between what your brain knows and what your mind is capable of accessing.

I call myself a Possibilian: I'm open to...ideas that we don't have any way of testing right now.

If choices and decisions derive from hidden mental processes, then free choice is either an illusion or, at minimum, more tightly constrained than previously considered.

As Carl Jung put it, "In each of us there is another whom we do not know." As Pink Floyd sang, "There's someone in my head, but it's not me."

Odor carries a great deal of information, including information about a potential mate's age, sex, fertility, identity, emotions, and health.