Dialectic, definition of, ii. 285.
Diderot, ii. 341, iii. [233], [272].
Diodorus the Megaric, ii. 72.
Diogenes the Cynic, i. 151, ii. 351, 352, iii. [388].
Diogenes, Laertius, i. 118, 151, 169, ii. 319, 351, 355, 363, iii. [255].
Dionysius the Areopagite, ii. 264.
Discovery, the work of understanding, i. 26, 27.
Disease, its nature, ii. 487.
Disgusting, the, i. 269.
Dissimulation, i. 47, iii. [231].