All these disorders involve a kind of displacement or cramp of the attention; and for all of them, one may broadly say, hypnotic suggestion is the best and often the only cure. Suggestion seems to stimulate antagonistic centres; to open clogged channels; to produce, in short, however we imagine the process, a rapid disappearance of the insistent notion. I have spoken of this effect as though it were mainly to be valued intellectually, as a readjustment of the dislocated attention. But I must note also that the moral results may be as important here as in the cases of inhibition of dipsomania and the like, already mentioned. These morbid fears which suggestion relieves may be ruinously degrading to a man's character. The ingredients of antipathy, of jealousy, which they sometimes contain, may make him dangerous to his fellows as well as loathsome to himself. One or two cases of the cure of morbid jealousy are to my mind among the best records which hypnotism has to show.[70] But this is not all. The treasure of memory is mixed with rubbish; the caution which experience has taught has often been taught too well; philosophic calm has often frozen into apathy. Plato would have the old men in his republic plied well with wine on festal days, that their tongues might be unloosed to communicate their wisdom without reserve. "Accumulated experience," it has been said with much truth in more modern language,[71] "hampers action, disturbs the logical reaction of the individual to his environment. The want of control which marks the decadence of mental power is [sometimes] itself undue control, a preponderance of the secondary over the primary influences." Now the removal of shyness, or _mauvaise honte_, which hypnotic suggestion can effect, is in fact a _purgation of memory_,--inhibiting the recollection of previous failures, and setting free whatever group of aptitudes is for the moment required. Thus, for the boy called on to make an oration in a platform exhibition, hypnotisation sets free the _primary_ instinct of garrulity without the restraining fear of ridicule. For the musical executant, on the other hand, a similar suggestion will set free the _secondary_ instinct which the fingers have acquired, without the interference of the learner's puzzled, hesitating thoughts.