In the first step of his philosophical system, the book of Estetica, Croce settled the concept of intuizione as primary cognitive form. In this early period historical knowledge also is thought to pertain to aesthetic domain. The following theoretical developments up to Filosofia della pratica and Logica risult in two changes: the historical judgements are identified with individual concepts and ascribed to the sphere of logic; the «pure intuition» of aesthetics is precisely defined as «liric intuition», namely expression of feelings, sentiments or passions. Through the aesthetics we are introduced to the basics of Croce’s theory of knowledge
