> I have come to believe, however, that we have this backwards. As intelligent, social entities, we decide (or, to some degree, our evolutionary history has decided for us) which other entities we regard as having inner lives and being worthy of care. We do not care for others because they are conscious. Rather, we believe they are conscious when and because we care about them.

I care about my plants and I don't think they're conscious. Hell, I care about my car.