4. Last and highest in the list of principles or elements is the cause of the union of the finite and infinite, to which Plato ascribes the order of the world. Reasoning from man to the universe, he argues that as there is a mind in the one, there must be a mind in the other, which he identifies with the royal mind of Zeus. This is the first cause of which 'our ancestors spoke,' as he says, appealing to tradition, in the Philebus as well as in the Timaeus. The 'one and many' is also supposed to have been revealed by tradition. For the mythical element has not altogether disappeared.
Some characteristic differences may here be noted, which distinguish the ancient from the modern mode of conceiving God.
a. To Plato, the idea of God or mind is both personal and impersonal. Nor in ascribing, as appears to us, both these attributes to him, and in speaking of God both in the masculine and neuter gender, did he seem to himself inconsistent. For the difference between the personal and impersonal was not marked to him as to ourselves. We make a fundamental distinction between a thing and a person, while to Plato, by the help of various intermediate abstractions, such as end, good, cause, they appear almost to meet in one, or to be two aspects of the same. Hence, without any reconciliation or even remark, in the Republic he speaks at one time of God or Gods, and at another time of the Good. So in the Phaedrus he seems to pass unconsciously from the concrete to the abstract conception of the Ideas in the same dialogue. Nor in the Philebus is he careful to show in what relation the idea of the divine mind stands to the supreme principle of measure.
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.
2. Pleasure is depreciated as relative, while good is exalted as absolute. But this distinction seems to arise from an unfair mode of regarding them; the abstract idea of the one is compared with the concrete experience of the other. For all pleasure and all knowledge may be viewed either abstracted from the mind, or in relation to the mind (compare Aristot. Nic. Ethics). The first is an idea only, which may be conceived as absolute and unchangeable, and then the abstract idea of pleasure will be equally unchangeable with that of knowledge. But when we come to view either as phenomena of consciousness, the same defects are for the most part incident to both of them. Our hold upon them is equally transient and uncertain; the mind cannot be always in a state of intellectual tension, any more than capable of feeling pleasure always. The knowledge which is at one time clear and distinct, at another seems to fade away, just as the pleasure of health after sickness, or of eating after hunger, soon passes into a neutral state of unconsciousness and indifference. Change and alternation are necessary for the mind as well as for the body; and in this is to be acknowledged, not an element of evil, but rather a law of nature. The chief difference between subjective pleasure and subjective knowledge in respect of permanence is that the latter, when our feeble faculties are able to grasp it, still conveys to us an idea of unchangeableness which cannot be got rid of.
3. In the language of ancient philosophy, the relative character of pleasure is described as becoming or generation. This is relative to Being or Essence, and from one point of view may be regarded as the Heraclitean flux in contrast with the Eleatic Being; from another, as the transient enjoyment of eating and drinking compared with the supposed permanence of intellectual pleasures. But to us the distinction is unmeaning, and belongs to a stage of philosophy which has passed away. Plato himself seems to have suspected that the continuance or life of things is quite as much to be attributed to a principle of rest as of motion (compare Charm. Cratyl.). A later view of pleasure is found in Aristotle, who agrees with Plato in many points, e.g. in his view of pleasure as a restoration to nature, in his distinction between bodily and mental, between necessary and non-necessary pleasures. But he is also in advance of Plato; for he affirms that pleasure is not in the body at all; and hence not even the bodily pleasures are to be spoken of as generations, but only as accompanied by generation (Nic. Eth.).
4. Plato attempts to identify vicious pleasures with some form of error, and insists that the term false may be applied to them: in this he appears to be carrying out in a confused manner the Socratic doctrine, that virtue is knowledge, vice ignorance. He will allow of no distinction between the pleasures and the erroneous opinions on which they are founded, whether arising out of the illusion of distance or not. But to this we naturally reply with Protarchus, that the pleasure is what it is, although the calculation may be false, or the after-effects painful. It is difficult to acquit Plato, to use his own language, of being a 'tyro in dialectics,' when he overlooks such a distinction. Yet, on the other hand, we are hardly fair judges of confusions of thought in those who view things differently from ourselves.
5. There appears also to be an incorrectness in the notion which occurs both here and in the Gorgias, of the simultaneousness of merely bodily pleasures and pains. We may, perhaps, admit, though even this is not free from doubt, that the feeling of pleasureable hope or recollection is, or rather may be, simultaneous with acute bodily suffering. But there is no such coexistence of the pain of thirst with the pleasures of drinking; they are not really simultaneous, for the one expels the other. Nor does Plato seem to have considered that the bodily pleasures, except in certain extreme cases, are unattended with pain. Few philosophers will deny that a degree of pleasure attends eating and drinking; and yet surely we might as well speak of the pains of digestion which follow, as of the pains of hunger and thirst which precede them. Plato's conception is derived partly from the extreme case of a man suffering pain from hunger or thirst, partly from the image of a full and empty vessel. But the truth is rather, that while the gratification of our bodily desires constantly affords some degree of pleasure, the antecedent pains are scarcely perceived by us, being almost done away with by use and regularity.
6. The desire to classify pleasures as accompanied or not accompanied by antecedent pains, has led Plato to place under one head the pleasures of smell and sight, as well as those derived from sounds of music and from knowledge. He would have done better to make a separate class of the pleasures of smell, having no association of mind, or perhaps to have divided them into natural and artificial. The pleasures of sight and sound might then have been regarded as being the expression