Why are these propositions not contradictory in light of the twofold nature of man?

The twofold nature of man refers to the idea that humans possess both physical and non-physical aspects. The propositions you mentioned may not be contradictory because they could be addressing different aspects of this twofold nature - one focusing on the physical aspect (body) and the other on the non-physical aspect (soul or mind). Alternatively, they could be seen as complementary rather than contradictory, illustrating the complexity of human nature.