A body is a temporal unity.
Any member separated from it, still points towards it.
As part of a whole is a means to refer to that whole.
A collection of bodies can unite, as members in a society.
If a member cut off from a society still refers to that society, then the society is not just.
One member of a society should never suffice as the articulation of the whole.
And thus, a just society is not to be regarded as a body, but should be formed from body parts only.