"From all that has been said above it is clear, that we, in many cases, perceive and form our general notions: (1) From particular things represented to our intellect fragmentarily, confusedly, and without order through our senses; I have settled to call such perceptions by the name of knowledge from the mere suggestions of experience. (2) From symbols, e.g., from the fact of having read or heard certain words we remember things and form certain ideas concerning them, similar to those through which we imagine things. I shall call both these ways of regarding things knowledge of the first kind, opinion, or imagination. (3) From the fact that we have notions common to all men, and adequate ideas of the properties of things; this I call reason and knowledge of the second kind. Besides these two kinds of knowledge, there is, as I will hereafter show, a third kind of knowledge which we will call intuition. This kind of knowledge proceeds from the absolute essence of certain attributes of God to the adequate knowledge of the essence of things."