Gewirth (1943) Clearness and Distinctness in Descartes.
Gewirth, Alan (1943). Clearness and Distinctness in Descartes. Philosophy 18 (69):17 - 36.Whereas Leibniz demands that the criterion be "palpable," "mechanical," and lacking in "even the least difficulty," and declares that "there is no need for prolix discussions concerning our prejudices," Descartes states already in the Discourse that "there is some difficulty in noting well what are the thin..