ONE:The requirements which Epicureanism failed to meet, were, to a great extent, satisfied by Stoicism. This philosophy had, from a comparatively early period, won the favour of a select class, but had been temporarily overshadowed by the popularity of its hedonistic and anti-religious rival, when a knowledge of the Greek systems first became diffused through Italy.169 The uncouth language of the early Stoics and the apparently unpractical character of their theories doubtless exercised a repellent effect on many who were not out of sympathy with their general spirit. These difficulties were overcome first by Panaetius, and then, to a still greater extent, by Posidonius, the elder contemporary and friend of Pompeius and Cicero, who was remarkable not only for his enormous learning but also for his oratorical talent.267 It seems probable that the lessons of this distinguished man marked the beginning of that religious reaction which eventually carried all before it. We have already seen how he abandoned the rationalistic direction struck out by his predecessor, Panaetius; and his return to the old Stoic orthodoxy may very well have responded to a revival of religious feeling among the educated Roman public, who by this time must have discovered that there were other ways of escaping from superstition besides a complete rejection of the supernatural.Be this as it may, Spinoza takes up the Aristotelian identification of logical with dynamical connexion, and gives it the widest possible development. For the Stagirite would not, at any rate, have dreamed of attributing any but a subjective existence to the demonstrative series, nor of extending it beyond the limits of our actual knowledge. Spinoza, on the other hand, assumes that the whole infinite chain of material causes is represented by a corresponding chain of eternal ideas; and this chain he calls the infinite intellect of God.566 Here, besides the necessities of systematisation, the411 influence of mediaeval realism is plainly evident. For, when the absolute self-existence of Platos Ideas had been surrendered in deference to Aristotles criticism, a home was still found for them by Plotinus in the eternal Nous, and by the Christian Schoolmen in the mind of God; nor did such a belief present any difficulties so long as the divine personality was respected. The pantheism of Spinoza, however, was absolute, and excluded the notion of any but a finite subjectivity. Thus the infinite intellect of God is an unsupported chain of ideas recalling the theory at one time imagined by Plato.567 Or its existence may be merely what Aristotle would have called potential; in other words, Spinoza may mean that reasons will go on evolving themselves so long as we choose to study the dialectic of existence, always in strict parallelism with the natural series of material movements constituting the external universe; and just as this is determined through all its parts by the totality of extension, or of all matter (whether moving or motionless) taken together, so also at the summit of the logical series stands the idea of God, from whose definition the demonstration of every lesser idea necessarily follows. It is true that in a chain of connected energies the antecedent, as such, must be always precisely equal to the consequent; but, apparently, this difficulty did not present itself to Spinoza, nor need we be surprised at this; for Kant, coming a century later, was still so imbued with Aristotelian traditions as, similarly, to derive the category of Cause and Effect from the relation between Reason and Consequent in hypothetical propositions.568