_How Love intensifies Emotions._—But is it literally true that in Love, as Mr. Spencer puts it, “purely personal pleasures are doubled by being shared with another?” It is true; though the way in which this is done is difficult to explain. No psychologist, so far as I am aware, has cracked the nut. I have given considerable thought to the subject, and venture to offer the following three suggestions as to the method by which Love doubles our pleasures:— (1) The lover’s pleasures are increased by the simple process of _emotional addition_. That is, supposing him to be reading a poem or story to his beloved, he will experience at one and the same moment not only the emotions inspired by the poem or novel he is reading, but those due to the sense of her presence. As the mind does not stop to analyse its feelings at such moments, all these various pleasurable emotions will coalesce into one seemingly homogeneous feeling of happiness; just as two complementary colours, or all the colours of the rainbow, if mixed, will produce the simple sensation called white. (2) The second way in which sympathetic companionship intensifies a lover’s feelings is through what may be called _emotional resonance_. If you take a violin-string in your hands, stretch it tightly, and then get some one to pluck it, a very faint sound only will be heard. But put it in its proper place, over the resonant surface of the instrument, and it will produce a full, loud, mellow tone. A human countenance is such an instrument—a sort of emotional sounding-board. Every man feels more or less pleased with himself if he gets off at table what he considers a wise or witty remark. If the sounding-boards of his neighbours vibrate responsively to his jokes, he feels proud and is doubly pleased; but if they only grin politely, the tone of his self-satisfaction is immediately lowered an octave and dies away pianissimo. Now between lovers such a fiasco is absolutely impossible. _They_ never grin at one another’s sayings for the sake of politeness merely. His most platitudinous remarks are sure to start a symphony of smiles on her countenance, where another man’s wittiest epigrams would be barely rewarded with a slight curl of the lips; and as for him, she may say anything she pleases, he never knows what she says but hears only the music of her voice—as if her words were the text, the rising and falling of her voice the melody, of an Italian opera. No wonder lovers are so exclusively interesting to each other, and such unmitigated bores to other people. Unfortunately lovers’ sympathy is rarely complete or durable. Sooner or later some difference of taste or opinion is discovered which has the same effect as a crack in the sounding-board—the resonance is destroyed. Yet it can be restored by using glue; and violin-builders will tell you that a glued instrument is often better than one which has never had a crack.