We will first show that it is not perception. Now perception is held to be of two kinds, external and internal [i.e., as produced by the external senses, or by the inner sense, mind]. The former is not the required means; for although it is possible that the actual contact of the senses and the object will produce the knowledge of the particular object thus brought in contact, yet as there can never be such contact in the case of the past or the future, the universal proposition[15] which was to embrace the invariable connection of the middle and major terms in every case becomes impossible to be known. Nor may you maintain that this knowledge of the universal proposition has the general class as its object, because if so, there might arise a doubt as to the existence of the invariable connection in this particular case[16] [as, for instance, in this particular smoke as implying fire].
Nor is internal perception the means, since you cannot establish that the mind has any power to act independently towards an external object, since all allow that it is dependent on the external senses, as has been said by one of the logicians, "The eye, &c., have their objects as described; but mind externally is dependent on the others."
Nor can inference be the means of the knowledge of the universal proposition, since in the case of this inference we should also require another inference to establish it, and so on, and hence would arise the fallacy of an ad infinitum retrogression.
Nor can testimony be the means thereof, since we may either allege in reply, in accordance with the Vaiśeshika doctrine of Kaṇáda, that this is included in the topic of inference; or else we may hold that this fresh proof of testimony is unable to leap over the old barrier that stopped the progress of inference, since it depends itself on the recognition of a sign in the form of the language used in the child's presence by the old man;[17] and, moreover, there is no more reason for our believing on another's word that smoke and fire are invariably connected, than for our receiving the ipse dixit of Manu, &c. [which, of course, we Chárvákas reject].
And again, if testimony were to be accepted as the only means of the knowledge of the universal proposition, then in the case of a man to whom the fact of the invariable connection between the middle and major terms had not been pointed out by another person, there could be no inference of one thing [as fire] on seeing another thing [as smoke]; hence, on your own showing, the whole topic of inference for oneself[18] would have to end in mere idle words.
Then again comparison,[19] &c., must be utterly rejected as the means of the knowledge of the universal proposition, since it is impossible that they can produce the knowledge of the unconditioned connection [i.e., the universal proposition], because their end is to produce the knowledge of quite another connection, viz., the relation of a name to something so named.
Again, this same absence of a condition,[20] which has been given as the definition of an invariable connection [i.e., a universal proposition], can itself never be known; since it is impossible to establish that all conditions must be objects of perception; and therefore, although the absence of perceptible things may be itself perceptible, the absence of non-perceptible things must be itself non-perceptible; and thus, since we must here too have recourse to inference, &c., we cannot leap over the obstacle which has already been planted to bar them. Again, we must accept as the definition of the condition, "it is that which is reciprocal or equipollent in extension[21] with the major term though not constantly accompanying the middle." These three distinguishing clauses, "not constantly accompanying the middle term," "constantly accompanying the major term," and "being constantly accompanied by it" [i.e., reciprocal], are needed in the full definition to stop respectively three such fallacious conditions, in the argument to prove the non-eternity of sound, as "being produced," "the nature of a jar," and "the not causing audition;"[22] wherefore the definition holds,—and again it is established by the śloka of the great Doctor beginning samásama.[23]
But since the knowledge of the condition must here precede the knowledge of the condition's absence, it is only when there is the knowledge of the condition, that the knowledge of the universality of the proposition is possible, i.e., a knowledge in the form of such a connection between the middle term and major term as is distinguished by the absence of any such condition; and on the other hand, the knowledge of the condition depends upon the knowledge of the invariable connection. Thus we fasten on our opponents as with adamantine glue the thunderbolt-like fallacy of reasoning in a circle. Hence by the impossibility of knowing the universality of a proposition it becomes impossible to establish inference, &c.[24]