For too long, we've disparaged our inarticulate instincts/hunches/emotions/intuitions as irrational and irresponsible, a vestigial legacy of our animal past. Thanks to this new research, however, it's becoming increasingly clear that our emotions have a logic all their own, that our instincts are often rooted in the processing powers of the unconscious brain.
--Wired, in an article about making hard decisions