THREE:The third great idea of Stoicism was its doctrine of humanity. Men are all children of one Father, and citizens37 of one State; the highest moral law is, Follow Nature, and Nature has made them to be social and to love one another; the private interest of each is, or should be, identified with the universal interest; we should live for others that we may live for ourselves; even to our enemies we should show love and not anger; the unnaturalness of passion is proved by nothing more clearly than by its anti-social and destructive tendencies. Here, also, the three great Stoics of the Roman empireSeneca, Epicttus, and Marcus Aureliusrather than the founders of the school, must be our authorities;82 whether it be because their lessons correspond to a more developed state of thought, or simply because they have been more perfectly preserved. The former explanation is, perhaps, the more generally accepted. There seems, however, good reason for believing that the idea of universal lovethe highest of all philosophical ideas next to that of the universe itselfdates further back than is commonly supposed. It can hardly be due to Seneca, who had evidently far more capacity for popularising and applying the thoughts of others than for original speculation, and who on this subject expresses himself with a rhetorical fluency not usually characterising the exposition of new discoveries. The same remark applies to his illustrious successors, who, while agreeing with him in tone, do not seem to have drawn on his writings for their philosophy. It is also clear that the idea in question springs from two essentially Stoic conceptions: the objective conception of a unified world, a cosmos to which all men belong;38 and the subjective conception of a rational nature common to them all. These, again, are rooted in early Greek thought, and were already emerging into distinctness at the time of Socrates. Accordingly we find that Plato, having to compose a characteristic speech for the Sophist Hippias, makes him say that like-minded men are by nature kinsmen and friends to one another.83 Nature, however, soon came to be viewed under a different aspect, and it was maintained, just as by some living philosophers, that her true law is the universal oppression of the weak by the strong. Then the idea of mind came in as a salutary corrective. It had supplied a basis for the ethics of Protagoras, and still more for the ethics of Socrates; it was now combined with its old rival by the Stoics, and from their union arose the conception of human nature as something allied with and illustrated by all other forms of animal life, yet capable, if fully developed, of rising infinitely above them. Nevertheless, the individual and the universal element were never quite reconciled in the Stoic ethics. The altruistic quality of justice was clearly perceived; but no attempt was made to show that all virtue is essentially social, and has come to be recognised as obligatory on the individual mainly because it conduces to the safety of the whole community. The learner was told to conquer his passions for his own sake rather than for the sake of others; and indulgence in violent anger, though more energetically denounced, was, in theory, placed on a par with immoderate delight or uncontrollable distress. So also, vices of impurity were classed with comparatively harmless forms of sensuality, and considered in reference, not to the social degradation of their victims, but to the spiritual defilement of their perpetrators.A learner who goes from gearing and shafts to steam and hydraulics, from machine tools to cranes and hoisting machinery, will not accomplish much. The best way is to select at first an easy subject, one that admits of a great range of modification, and if possible, one that has not assumed a standard form of construction. Bearings and supports for shafts and spindles, [158] is a good subject to begin with.
