pains. It is born, as another wise myth has it, in original sin. And the passions and ambitions of life, as they come on, only complicate this burden and make it heavier, without rendering it less incessant or gratuitous. Whence this fatality, and whither does it lead? It comes from heredity, and it leads to propagation. When we ask how heredity could be started or transmitted, our ignorance of nature and of past time reduces us to silence or to wild conjectures. Something—let us call it matter—must always have existed, and some of its parts, under pressure of the others, must have got tied up into knots, like the mainspring of a watch, in such a violent and unhappy manner that when the pressure is relaxed they fly open as fast as they can, and unravel themselves with a vast sense of relief. Hence the longing to satisfy latent passions, with the fugitive pleasure in doing so. But the external agencies that originally wound up that mainspring never cease to operate; every fresh stimulus gives it another turn, until it snaps, or grows flaccid, or is unhinged. Moreover, from time to time, when circumstances change, these external agencies may encrust that primary organ with minor organs attached to it. Every impression, every adventure, leaves a trace or rather a seed behind it. It produces a further complication in the structure of the body, a fresh charge, which tends to repeat the impressed motion in season and out of season. Hence that perpetual docility or ductibility in living substance which enables it to learn tricks, to remember facts, and (when the seeds of past experiences marry and cross in the brain) to imagine new experiences, pleasing or horrible. Every act initiates a new habit and may implant a new instinct. We see people even late in life carried away by political or religious contagions or developing strange vices; there would be no peace in old age, but rather a greater and greater obsession by all sorts of cares, were it not that time, in exposing us to many adventitious influences, weakens or discharges our primitive passions; we are less greedy, less lusty, less hopeful, less generous. But these weakened primitive impulses are naturally by far the strongest and most deeply rooted in the organism: so that although an old man may be converted or may take up some hobby, there is usually something thin in his elderly zeal, compared with the heartiness of youth; nor is it edifying to see a soul in which the plainer human passions are extinct becoming a hot-bed of chance delusions.
In any case each fresh habit taking root in the organism forms
