_Its origin: the craving for knowledge—Its evolution—Utilitarian period: surprise, astonishment, interrogation—Disinterested period: transition forms—Classification according to intellectual states—Classification according to emotional states: dynamic forms, static forms—Period of passion: its rarity—Pathology—Simple doubt—Dramatic doubt—"Folie du doute"—Mysticism in science: deviation comes, not from the object, but from the method of research._
CHAPTER XI. · THE INTELLECTUAL SENTIMENT.
From The Psychology of the Emotions by Théodule Ribot.
