PHRASE: "A great part, perhaps the greatest part, of the business of our reason..."

"A great part, perhaps the greatest part, of the business of our reason consists in analyses of the concepts that we already have of objects."

Here, Kant discusses the fact that a priori congnition can occur about things we already see, or believe we understand. He tries to give a better understanding of what he means by being able to remove empirical, or experiential, knowledge and supplant it with a priori cognition, or "cognition independent of all experience and evel of all impressions of the senses" (Kant 136). By describing how one can use a priori cognition to develop new concepts about objects already understood, the idea behind a priori deals more with re-evaluting and redefining the concepts we already have through "pure" knowledge, or knowledge without experience or senses. Cognition without sense or experience can be closesly defined with knowledge that is innate to each of us. Kant then uses this a priori cognition, or pure knowledge, in the rest of his introduction to explain how we can come to truely know things, outside of the fact that we experience them or see them.