And yet the doctrine of the Christians can only be compared with philosophy. For, so far as the latter is genuine, it is also guided by the Logos; and, conversely, what the Christians teach concerning the Father of the world, the destiny of man, the nobility of his nature, freedom and virtue, justice and recompense, has also been attested by the wisest of the Greeks. They indeed only stammered, whereas the Christians speak. These, however, use no unintelligible and unheard-of language, but speak with the words and through the power of reason. The wonderful arrangement, carried out by the Logos himself, through which he ennobled the human race by restoring its consciousness of its own nobility, compels no one henceforth to regard the reasonable as the unreasonable or wisdom as folly. But is the Christian wisdom not of divine origin? How can it in that case be natural, and what connection can exist between it and the wisdom of the Greeks? Justin bestowed the closest attention on this question, but he never for a moment doubted what the answer must be. Wherever the reasonable has revealed itself, it has always been through the operation of the divine reason. For man's lofty endowment consists in his having had a portion of the divine reason implanted within him, and in his consequent capacity of attaining a knowledge of divine things, though not a perfect and clear one, by dint of persistent efforts after truth and virtue. When man remembers his real nature and destination, that is, when he comes to himself, the divine reason is already revealing itself in him and through him. As man's possession conferred on him at the creation, it is at once his most peculiar property, and the power which dominates and determines his nature.[362] All that is reasonable is based on revelation. In order to accomplish his true destiny man requires from the beginning the inward working of that divine reason which has created the world for the sake of man, and therefore wishes to raise man beyond the world to God.[363]

Apparently no one could speak in a more stoical fashion. But this train of thought is supplemented by something which limits it. Revelation does retain its peculiar and unique significance. For no one who merely possessed the "seed of the Logos" (σπερμα του λογου), though it may have been his exclusive guide to knowledge and conduct, was ever able to grasp the whole truth and impart it in a convincing manner. Though Socrates and Heraclitus may in a way be called Christians, they cannot be so designated in any real sense. Reason is clogged with unreasonableness, and the certainty of truth is doubtful wherever the whole Logos has not been acting; for man's natural endowment with reason is too weak to oppose the powers of evil and of sense that work in the world, namely, the demons. We must therefore believe in the prophets in whom the whole Logos spoke. He who does that must also of necessity believe in Christ; for the prophets clearly pointed to him as the perfect embodiment of the Logos. Measured by the fulness, clearness, and certainty of the knowledge imparted by the Logos Christ, all knowledge independent of him appears as merely human wisdom, even when it emanates from the seed of the Logos. The Stoic argument is consequently untenable. Men blind and kept in bondage by the demons require to be aided by a special revelation. It is true that this revelation is nothing new, and in so far as it has always existed, and never varied in character, from the beginning of the world, it is in this sense nothing extraordinary. It is the divine help granted to man, who has fallen under the power of the demons, and enabling him to follow his reason and freedom to do what is good. By the appearance of Christ this help became accessible to all men. The dominion of demons and revelation are the two correlated ideas. If the former did not exist, the latter would not be necessary. According as we form a lower or higher estimate of the pernicious results of that sovereignty, the value of revelation rises or sinks. This revelation cannot do less than give the necessary assurance of the truth, and it cannot do more than impart the power that develops and matures the inalienable natural endowment of man and frees him from the dominion of the demons.

Accordingly the teaching of the prophets and Christ is related even to the very highest human philosophy as the whole is to the part,[364] or as the certain is to the uncertain; and hence also as the permanent is to the transient. For the final stage has now arrived and Christianity is destined to put an end to natural human philosophy. When the perfect work is there, the fragmentary must cease. Justin gave the clearest expression to this conviction. Christianity, i.e., the prophetic teaching attested by Christ and accessible to all, puts an end to the human systems of philosophy that from their close affinity to it may be called Christian, inasmuch as it effects all and more than all that these systems have done, and inasmuch as the speculations of the philosophers, which are uncertain and mingled with error, are transformed by it into dogmas of indubitable certainty.[365] The practical conclusion drawn in Justin's treatise from this exposition is that the Christians are at least entitled to ask the authorities to treat them as philosophers (Apol. I. 7, 20: II. 15). This demand, he says, is the more justifiable because the freedom of philosophers is enjoyed even by such people as merely bear the name, whereas in reality they set forth immoral and pernicious doctrines.[366]

In the dialogue with the Jew Trypho, which is likewise meant for heathen readers, Justin ceased to employ the idea of the existence of a "seed of the Logos implanted by nature" (σπερμα λογου εμφυτον) in every man. From this fact we recognise that he did not consider the notion of fundamental importance. He indeed calls the Christian religion a philosophy;[367] but, in so far as this is the case, it is "the only sure and saving philosophy." No doubt the so-called philosophies put the right questions, but they are incapable of giving correct answers. For the Deity, who embraces all true being, and a knowledge of whom alone makes salvation possible, is only known in proportion as he reveals himself. True wisdom is therefore exclusively based on revelation. Hence it is opposed to every human philosophy, because revelation was only given in the prophets and in Christ.[368] The Christian is the philosopher,[369] because the followers of Plato and the Stoics are virtually no philosophers. In applying the title "philosophy" to Christianity he therefore does not mean to bring Christians and philosophers more closely together. No doubt, however, he asserts that the Christian doctrine, which is founded on the knowledge of Christ and leads to blessedness,[370] is in accordance with reason.

Athenagoras. The petition on behalf of Christians, which Athenagoras, "the Christian philosopher of Athens," presented, to the emperors Marcus Aurelius and Commodus, nowhere expressly designates Christianity as a philosophy, and still less does it style the Christians philosophers.[371] But, at the very beginning of his writing Athenagoras also claims for the Christian doctrines the toleration granted by the state to all philosophic tenets.[372] In support of his claim he argues that the state punishes nothing but practical atheism,[373] and that the "atheism" of the Christians is a doctrine about God such as had been propounded by the most distinguished philosophers—Pythagoreans, Platonists, Peripatetics, and Stoics—who, moreover, were permitted to write whatsoever they pleased on the subject of the "Deity."[374] The Apologist concedes even more: "If philosophers did not also acknowledge the existence of one God, if they did not also conceive the gods in question to be partly demons, partly matter, partly of human birth, then certainly we would be justly expelled as aliens."[375] He therefore takes up the standpoint that the state is justified in refusing to tolerate people with completely new doctrines. When we add that he everywhere assumes that the wisdom and piety of the emperors are sufficient to test and approve[376] the truth of the Christian teaching, that he merely represents this faith itself as the reasonable doctrine,[377] and that, with the exception of the resurrection of the body, he leaves all the positive and objectionable tenets of Christianity out of account,[378] there is ground for thinking that this Apologist differs essentially from Justin in his conception of the relation of Christianity to secular philosophy.

Moreover, it is not to be denied that Athenagoras views the revelation in the prophets and in Christ as completely identical. But in one very essential point he agrees with Justin; and he has even expressed himself still more plainly than the latter, inasmuch as he does not introduce the assumption of a "seed of the Logos implanted by nature" σπερμα λογου εμφυτον. The philosophers, he says, were incapable of knowing the full truth, since it was not from God, but rather from themselves, that they wished to learn about God. True wisdom, however, can only be learned from God, that is, from his prophets; it depends solely on revelation.[379] Here also then we have a repetition of the thought that the truly reasonable is of supernatural origin. Such is the importance attached by Athenagoras to this proposition, that he declares any demonstration of the "reasonable" to be insufficient, no matter how luminous it may appear. Even that which is most evidently true—e.g., monotheism—is not raised from the domain of mere human opinion into the sphere of undoubted certainty till it can be confirmed by revelation.[380] This can be done by Christians alone. Hence they are very different from the philosophers, just as they are also distinguished from these by their manner of life.[381] All the praises which Athenagoras from time to time bestows on philosophers, particularly Plato,[382] are consequently to be understood in a merely relative sense. Their ultimate object is only to establish the claim made by the Apologist with regard to the treatment of Christians by the state; but they are not really meant to bring the former into closer relationship to philosophers. Athenagoras also holds the theory that Christians are philosophers, in so far as the "philosophers" are not such in any true sense. It is only the problems they set that connect the two. He exhibits less clearness than Justin in tracing the necessity of revelation to the fact that the demon sovereignty, which, above all, reveals itself in polytheism,[383] can only be overthrown by revelation; he rather emphasises the other thought (cc. 7, 9) that the necessary attestation of the truth can only be given in this way.[384]

Tatian's[385] chief aim was not to bring about a juster treatment of the Christians.[386] He wished to represent their cause as the good contrasted with the bad, wisdom as opposed to error, truth in contradistinction to outward seeming, hypocrisy, and pretentious emptiness. His "Address to the Greeks" begins with a violent polemic against all Greek philosophers. Tatian merely acted up to a judgment of philosophers and philosophy which in Justin's case is still concealed.[387] Hence it was not possible for him to think of demonstrating analogies between Christians and philosophers. He also no doubt views Christianity as "reasonable;" he who lives virtuously and follows wisdom receives it;[388] but yet it is too sublime to be grasped by earthly perception.[389] It is a heavenly thing which depends on the communication of the "Spirit," and hence can only be known by revelation.[390] But yet it is a "philosophy" with definite doctrines (δογματα);[391] it brings nothing new, but only such blessings as we have already received, but could not retain[392] owing to the power of error, i.e., the dominion of the demons.[393] Christianity is therefore the philosophy in which, by virtue of the Logos revelation through the prophets,[394] the rational knowledge that leads to life[395] is restored. This knowledge was no less obscured among the Greek philosophers than among the Greeks generally. In so far as revelation took place among the barbarians from the remotest antiquity, Christianity may also be called the barbarian philosophy.[396] Its truth is proved by its ancient date[397] as well as by its intelligible form, which enables even the most uneducated person that is initiated in it[398] to understand it perfectly.[399] Finally, Tatian also states (c. 40) that the Greek sophists have read the writings of Moses and the prophets, and reproduced them in a distorted form. He therefore maintains the very opposite of what Celsus took upon him to demonstrate when venturing to derive certain sayings and doctrines of Christ and the Christians from the philosophers. Both credit the plagiarists with intentional misrepresentation or gross misunderstanding. Justin judged more charitably. To Tatian, on the contrary, the mythology of the Greeks did not appear worse than their philosophy; in both cases he saw imitations and intentional corruption of the truth.[400]

Theophilus agrees with Tatian, in so far as he everywhere appears to contrast Christianity with philosophy. The religious and moral culture of the Greeks is derived from their poets (historians) and philosophers (ad Autol. II. 3 fin. and elsewhere). However, not only do poets and philosophers contradict each other (II. 5); but the latter also do not agree (II. 4. 8: III. 7), nay, many contradict themselves (III. 3). Not a single one of the so-called philosophers, however, is to be taken seriously;[401] they have devised myths and follies (II. 8); everything they have set forth is useless and godless (III. 2); vain and worthless fame was their aim (III. 3). But God knew beforehand the "drivellings of these hollow philosophers" and made his preparations (II. 15). He of old proclaimed the truth by the mouth of prophets, and these deposited it in holy writings. This truth refers to the knowledge of God, the origin and history of the world, as well as to a virtuous life. The prophetic testimony in regard to it was continued in the Gospel.[402] Revelation, however, is necessary because this wisdom of the philosophers and poets is really demon wisdom, for they were inspired by devils.[403] Thus the most extreme contrasts appear to exist here. Still, Theophilus is constrained to confess that truth was not only announced by the Sibyl, to whom his remarks do not apply, for she is (II. 36): εν Ελλησιν και εν τοις λοιποις εθνετιν γενομενη προφητις, but that poets and philosophers, "though against their will," also gave clear utterances regarding the justice, the judgment, and the punishments of God, as well as regarding his providence in respect to the living and the dead, or, in other words, about the most important points (II. 37, 38, 8 fin.). Theophilus gives a double explanation of this fact. On the one hand he ascribes it to the imitation of holy writings (II. 12, 37: I. 14), and on the other he admits that those writers, when the demons abandoned them (τη ψυχη εκνηψαντες εξ αυτων), of themselves displayed a knowledge of the divine sovereignty, the judgment etc., which agrees with the teachings of the prophets (II. 8). This admission need not cause astonishment; for the freedom and control of his own destiny with which man is endowed (II. 27) must infallibly lead him to correct knowledge and obedience to God, as soon as he is no longer under the sway of the demons. Theophilus did not apply the title of philosophy to Christian truth, this title being in his view discredited; but Christianity is to him the "wisdom of God," which by luminous proofs convinces the men who reflect on their own nature.[404]