PHILEBUS.

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 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 (cp. Arist. Nic. Ethics, x. 3, 4). 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, not any element of evil, but a law of nature, is rather to be acknowledged. The chief difference between the 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.