Chisholm starts by explicating some of Brentano’s idiosyncratic metaphysical views. Soon, however, Chisholm turns to some central ethical doctrines. Perhaps the first among these involves the introduction of the concept of correctness. In the first instance, we think of certain judgments as being correct. Thus, for example, suppose it now seems to me that I am seeing something red. If I judge that I am now seeing something red, it will be clear to me that my judgment is correct. If another person judges that I am not seeing something red, it will be clear to me that his judgment is incorrect. A similar thing could happen in the case of a judgment to the effect that all squares are rectangles. If I make that judgment with full understanding of the concepts of squareness and rectangularity, it will be clear to me that my judgment is correct. Brentano evidently made use of this concept of correct judgment in an attempt to explain the notion of truth.