Yet, if the conception of unity was gaining ground, the conceptions of purpose and vitality must have been growing weaker as the triumph of brute force prolonged itself without limit or hope of redress. Hence Stoicism in its later form shows a tendency to dissociate the dynamism of Heracleitus from the teleology of Socrates, and to lean on the former rather than on the latter for support. One symptom of this changed attitude is a blind worship of power for its own sake. We find the renunciation of pleasure and the defiance of pain appreciated more from an aesthetic than from an ethical point of view; they are exalted almost in the spirit of a Red Indian, not as means to higher ends, but as manifestations of unconquerable strength; and sometimes the highest sanction of duty takes the form of a morbid craving for applause, as if the universe were an amphitheatre and life a gladiatorial game.[102]
The noble spirit of Marcus Aurelius was, indeed, proof against such temptations: and he had far more to dread than to hope from the unlightened voice of public opinion; but to him also, ‘standing between two eternities,’ Nature presented herself chiefly under the aspect of an overwhelming and absorbing Power. Pleasure is not so much dangerous as worthless, weak, and evanescent. Selfishness, pride, anger, and discontent will soon be swept into abysmal gulfs of oblivion by the roaring cataract of change. Universal history is one long monotonous procession of phantasms passing over the scene into death and utter night. In one short life we may see all that ever was, or is, or is to be; the same pageant has already been and shall be repeated an infinite number of times. Nothing endures but the process of unending renovation: we must die that the world may be ever young. Death itself only reunites us with the absolute All whence we come, in which we move, and whither we return.[103] But the imperial sage makes no attempt to explain why we should ever have separated ourselves from it in thought; or why one life should be better worth living than another in the universal vanity of things.
The physics of Stoicism was, in truth, the scaffolding rather than the foundation of its ethical superstructure. The real foundation was the necessity of social existence, formulated under the influence of a logical exclusiveness first introduced by Parmenides, and inherited from his teaching by every system of philosophy in turn. Yet there is no doubt that Stoic morality was considerably strengthened and steadied by the support it found in conceptions derived from a different order of speculations; so much so that at last it grew to conscious independence of that support.