Jean-Paul Sartre's novel Nausea, presented as the journal of Antoine Roquentin, opens with the narrator's statement of an unexplained change that has pervaded his world. Roquentin's need to examine this disturbing sense of change is the explicit reason why he begins writing.
Kenaan, H. , Ferber, I. (2011)., Moods and philosophy, in H. Kenaan & I. Ferber (eds.), Philosophy's moods, Dordrecht, Springer, pp. 3-10.
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