How human nature is represented in texts by Defoe and Rousseau

Examine the ways human nature is represented in the texts by Defoe, Rousseau. How does a particular concept of human nature (or the authors anthropological conception) affect the fate of human protagonists in the texts written by them? How does the characters self-awareness (or lack of it) direct their specific actions and moral choices? What conclusions can you draw from such representations of humanity? Express your understanding of how closely these authors views of human existence, potential, and destiny approach your own position on these matters.