Roughness

Definition and stakes

Portrait of E. M. Forster E. M. Forster,  Aspects of the novel (1927)

“ Anyhow, it characterizes these novels and gives them what is always provocative in a work of art: roughness of surface. While they pass under our eyes they are full of dents and grooves and lumps and spikes which draw from us little cries of approval and disapproval. When they have past, the roughness is forgotten, they become as smooth as the moon. ”
Source: Gutenberg

Portrait of Plato Plato,  Timaeus

“ For roughness is hardness mingled with irregularity, and smoothness is produced by the joint effect of uniformity and density.
The most important of the affections which concern the whole body remains to be considered-that is, the cause of pleasure and pain in the perceptions of which I have been speaking, and in all other things which are perceived by sense through the parts of the body, and have both pains and pleasures attendant on them.
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Source: Wikisource

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