ONE:In point of style, Plotinus is much the most difficult of the ancient philosophers, and, in this respect, is only surpassed by a very few of the moderns. Even Longinus, who was one of the most intelligent critics then living, and who, besides,283 had been educated in the same school with our philosopher, could not make head or tail of his books when copies of them were sent to him by Porphyry, and supposed, after the manner of philologists, that the text must be corrupt, much to the disgust of Porphyry, who assures us that its accuracy was unimpeachable.426 Probably politeness prevented Longinus from saying, what he must have seen at a glance, that Plotinus was a total stranger to the art of literary composition. We are told that he wrote as fast as if he were copying from a book; but he had never mastered even the elements of the Greek language; and the weakness of his eyesight prevented him from reading over what he had written. The mistakes in spelling and grammar Porphyry corrected, but it is evident that he has made no alterations in the general style of the Enneads; and this is nearly as bad as bad can be��disjointed, elliptical, redundant, and awkward. Chapter follows chapter and paragraph succeeds to paragraph without any fixed principle of arrangement; the connexion of the sentences is by no means clear; some sentences are almost unintelligible from their extreme brevity, others from their inordinate length and complexity. The unpractised hand of a foreigner constantly reveals itself in the choice and collocation of words and grammatical inflections. Predicates and subjects are huddled together without any regard to the harmonies of number and gender, so that even if false concords do not occur, we are continually annoyed by the suggestion of their presence.427The modern doctrine of evolution, while relying largely on the fertility of multiplied chances, is not obliged to assume such an enormous number of simultaneous coincidences as Epicurus. The ascription of certain definite attractions and repulsions to the ultimate particles of matter would alone restrict their possible modes of aggregation within comparatively narrow limits. Then, again, the world seems to have been built up by successive stages, at each of which some new force or combination of forces came into play, a firm basis having been already secured for whatever variations they were capable of producing. Thus the solar system is a state of equilibrium resulting from the action of two very simple forces, gravitation and heat. On the surface of the earth, cohesion and chemical affinity have been superadded. When a fresh equilibrium had resulted from their joint energy, the more complex conditions of life found free scope for their exercise. The transformations of living species were similarly effected by variation on variation. And, finally, in one species, the satisfaction of its animal wants set free those more refined impulses by which, after many experiments, civilisation has been built up. Obviously the total sum of adaptations necessary to constitute our actual world will have the probabilities of its occurrence enormously increased if we suppose the more general conditions to be established prior to, and in complete independence of, the less general, instead of limiting ourselves, like the ancient atomists, to one vast simultaneous shuffle of all the material and dynamical elements involved.