As contrary electricities attract each other and accumulate between the two plates of the condenser from which the spark will presently flash, so, by simply bringing people together, strong attractions and repulsions take place, followed by an utter loss of balance, in a word, by that electrification of the soul known as passion. Were man to give way to the impulse of his natural feelings, were there neither social nor moral law, these outbursts of violent feeling would be the ordinary rule in life. But utility demands that these outbursts should be foreseen and averted. Man must live in society, and consequently submit to rules. And what interest advises, reason commands: duty calls, and we have to obey the summons. Under this dual influence has perforce been formed an outward layer of feelings and ideas which make for permanence, aim at becoming common to all men, and cover, when they are not strong enough to extinguish it, the inner fire of individual passions. The slow progress of mankind in the direction of an increasingly peaceful social life has gradually consolidated this layer, just as the life of our planet itself has been one long effort to cover over with a cool and solid crust the fiery mass of seething metals. But volcanic eruptions occur. And if the earth were a living being, as mythology has feigned, most likely when in repose it would take delight in dreaming of these sudden explosions, whereby it suddenly resumes possession of its innermost nature. Such is just the kind of pleasure that is provided for us by drama.
Henri Bergson (Laughter)