by Katalin Balog
This is the last in a series of four essays on subjectivity and objectivity. You can read part 1 here, part 2 here, and part 3 here.
"…tie me to earth…"
(Angel Damiel from Wings of Desire)
1. Mind and body
Descartes thought God could create a disembodied mind – indeed he thought angels are such beings. Consequently, he thought that mind and body are distinct and separate entities. The essence of mind, or what he thought was the same, the person, is to think, feel, perceive, reflect, understand, and doubt; bodies, whose essence is to occupy space, are in some sense external to persons. Having a body, though supremely important for actual human beings, is not part of what it is to be a person.
Others deny that disembodied minds – minds that exists in the absence of anything physical – are possible. According to most contemporary philosophers, minds can only arise in brains – or, perhaps, in other physical substrates, not to rule out the possibility of alien intelligence – though the details of what this means are controversial. But even these philosophers could assent to the possibility of a brain-in-the-vat scenario, in which a person survives as a mere brain, hooked up to appropriate input and output channels; or, perhaps less fancifully, to the possibility of a brain transplant. These cases suggest that my body is external to myself, much in the way my cat is external to myself.
Yet Descartes was also puzzled about the relationship of mind and body. As he muses in his Sixth Meditation, sensations of hunger, pain, and bodily feeling reveal that "I am …compounded and intermingled with my body, that I form, as it were, a single whole with it". In a letter to Princess Elizabeth, he suggested that it is hard, maybe impossible to understand clearly how mind and body can be both separate and a "single whole". My body reveals itself, rather than being external to myself, as myself, a piece of the physical world, but alive and suffused by soul. The notion of two separate things interacting – as Descartes thought mind and body were – doesn't do justice to our experience of the intermingling of the mental and the physical in our own body.
