Brooks says: "In one sense all judgments are synthetic. A judgment consists of the union of two ideas and this uniting is a process of synthesis. This, however, is a superficial view of the process. Such a synthesis is a mere mechanical synthesis; below this is a thought-process which is sometimes analytic, sometimes synthetic and sometimes neither analytic nor synthetic." The same authority states: "The act of mind described is what is known as _logical judgment_. Strictly speaking, however, every intelligent act of the mind is accompanied with a _judgment_. To know is to discriminate and, therefore, to judge. Every sensation or cognition involves a knowledge and so a judgment that it exists. The mind cannot think at all without judging; to think is to judge. _Even in forming the notions which judgment compares, the mind judges._ Every notion or concept implies a previous act of judgment to form it: in forming a concept, we compare the common attributes before we unite them; and comparison is judgment. It is thus true that 'Every concept is a contracted judgment; every judgment an expanded concept.' This kind of judgment, by which we affirm the existence of states of consciousness, discriminate qualities, distinguish percepts and form concepts, is called _primitive or psychological judgment_." In Logical Judgment there are two aspects; _i.e._, Judgment by Extension and Judgment by Intension. When we compare the two concepts _horse_ and _animal_ we find that the concept _horse_ is contained in the concept _animal_ and the judgment that "_a horse is an animal_" may be considered as a Judgment by Extension. In the same comparison we see that the concept _horse_ contains the _quality of animality_, and in attributing this quality to the _horse_, we may also say "_the horse is an animal_," which judgment may be considered as a Judgment by Intension. Brooks says: "Both views of Judgment are correct; the mind may reach its judgment either by extension or by intension. The method by extension is usually the more natural."