Much more might be said to show that each of these four instruments is unclear, but the most important point is what I said earlier: that of the two objects of search the particular quality and the being of an object the soul seeks to know not the quality but the essence, whereas each of these four instruments presents to the soul, in discourse and in examples, what she is not seeking, and thus makes it easy to refute by sense perception anything that may be said or pointed out, and fills everyone, so to speak, with perplexity and confusion.