My theory is that every person contains a certain predetermined essence of either catness or dogness; a rare few contain essences of both. Catness is caution, privacy, order, mind; dogness is impulsiveness, sociability, chaos, body.

the unclimbably high walls around the prison

absolute objectists, who made the subjective perception dependent on the real existence of the object

As a result of this imbalance, a net fetofetal transfusion occurs, from one twin (the donor) to the other (the recipient).