b. Again, to us there is a strongly-marked distinction between a first cause and a final cause. And we should commonly identify a first cause with God, and the final cause with the world, which is His work. But Plato, though not a Pantheist, and very far from confounding God with the world, tends to identify the first with the final cause. The cause of the union of the finite and infinite might be described as a higher law; the final measure which is the highest expression of the good may also be described as the supreme law. Both these conceptions are realized chiefly by the help of the material world; and therefore when we pass into the sphere of ideas can hardly be distinguished. The four principles are required for the determination of the relative places of pleasure and wisdom. Plato has been saying that we should proceed by regular steps from the one to the many. Accordingly, before assigning the precedence either to good or pleasure, he must first find out and arrange in order the general principles of things. Mind is ascertained to be akin to the nature of the cause, while pleasure is found in the infinite or indefinite class. We may now proceed to divide pleasure and knowledge after their kinds. III. 1. Plato speaks of pleasure as indefinite, as relative, as a generation, and in all these points of view as in a category distinct from good. For again we must repeat, that to the Greek 'the good is of the nature of the finite,' and, like virtue, either is, or is nearly allied to, knowledge. The modern philosopher would remark that the indefinite is equally real with the definite. Health and mental qualities are in the concrete undefined; they are nevertheless real goods, and Plato rightly regards them as falling under the finite class. Again, we are able to define objects or ideas, not in so far as they are in the mind, but in so far as they are manifested externally, and can therefore be reduced to rule and measure. And if we adopt the test of definiteness, the pleasures of the body are more capable of being defined than any other pleasures. As in art and knowledge generally, we proceed from without inwards, beginning with facts of sense, and passing to the more ideal conceptions of mental pleasure, happiness, and the like.