When no idea seems right, the right one must seem wrong. - Marvin Minsky

I suspect our human "thinking processes" often "break down," but you rarely notice anything's wrong, because your systems so quickly switch you to think in different ways, while the systems that failed are repaired or replaced.

Only the surface of reason is rational. I don't mean that understanding emotion is easy, only that understanding reason is probably harder.

Since we have no systematic way to avoid all the inconsistencies of commonsense logic, each person must find his own way by building a private collection of "cognitive censors" to suppress the kinds of mistakes he has discovered in the past.