[24] (_p. 15_). The discovery that every act of love is a “pleasing,” every act of hate a “displeasing,” was very near to Descartes when he wrote his valuable little work on _The Affections_. In the second book, _Des Passions_, ii. art. 139, he says: “Lorsque les choses qu’elles (l’amour et la haine) nous portent à aimer sont véritablement bonnes, et celles qu’elles nous portent à haïr, sont véritablement mauvaises, l’amour est incomparablement meilleure que la haine; elle ne saurait être trop grande et elle ne manque jamais de produire la joie”; and this agrees with what he says a little later: “La haine, au contraire ne saurait être si petite qu’elle ne nuise, et elle n’est jamais sans tristesse.” In ordinary life, however, the expressions “joy” and “sadness,” “pleasure” and “pain” are only used when the pleasure and displeasure have attained a certain degree of liveliness. A sharp boundary in this unscientific division there is not; we may, however, be allowed to make use of it as it stands. It is enough that the expressions, “pleasure” and “displeasure” are not narrowed down by any such limit. [25] (_p. 16_). The expressions “true” and “false” are employed in a manifold sense; in one sense we employ them in speaking of true and false judgments; again (somewhat modifying the meaning), of objects, as when we say, “a true friend,” “false money.” I need scarcely observe that where I use the expressions “true” and “false” in this lecture, I associate therewith not the first and proper meaning, but rather a metaphorical one having reference to objects. True, is, therefore, what is; false, what is not. Just as Aristotle spoke of “ὂν ὡς ἀληθές” so we might also say, “ἀληθές ὡς ὂν.”