When conflict occurs it is the responsibility of Reason to sort things out and exert control, restoring a harmonious relationship among the 3 elements of our selves.
The sensible world is dependent on the ideal world where the concept of the soul belongs, since the soul is regarded as something permanent, man should give more importance to it than the physical body which resides in the world of sense (Plato).
René Descartes thought that the only thing that one cannot doubt is the existence of the self, for even if one doubts oneself, that only proves that there is a doubting self, a thing that thinks and therefore, that cannot be doubted
David Hume is a Scottish philosopher, an empiricist who believes that one can know only what comes from the senses and experiences, argues that the self is nothing like what his predecessors thought of it