Letters

²³ It is difficult to believe that this question has been put in the form of objection by one claiming to be in any sense a philosopher; for he says, “All measure is limited by time,” as if men were accustomed to no other measures than measures of time, such as hours and days and years, or such as are referred to when we say that the time of a short syllable is one-half of that of a long syllable. For I suppose that bushels and firkins, urns and amphoræ, are not measures of time.

How, then, is all measure limited by time? Do not the heathen themselves affirm that the sun is eternal? And yet they presume to calculate and pronounce on the basis of geometrical measurements what is the proportion between it and the earth. Whether this calculation be within or beyond their power, it is certain, notwithstanding, that it has a disc of definite dimensions. For if they do ascertain how large it is, they know its dimensions, and if they do not succeed in their investigation, they do not know these; but the fact that men cannot discover them is no proof that they do not exist.

It is possible, therefore, for something to be eternal, and nevertheless to have a definite measure of its proportions. In this I have been speaking upon the assumption of their own view as to the eternal duration of the sun, in order that they may be convinced by one of their own tenets, and obliged to admit that something may be eternal and at the same time measurable. And therefore let them not think that the threatening of Christ concerning eternal punishment is not to be believed because of His also saying, “In what measure ye mete, it shall be measured unto you.”