_Tasso_. As to this, I can answer from experience. Ennui seems to me of the nature of atmosphere, which fills up the spaces between material bodies, and also the voids in the bodies themselves. Whenever a body disappears, and is not replaced by another, air fills up the gap immediately. So too, in human life, the intervals between pleasures and pains are occupied by ennui. And since in the material world, according to the Peripatetics, there can be no vacuum, so also in our life there is none, save when for some cause or other the mind loses its power of thought. At all other times the mind, considered as a separate identity from the body, is occupied with some sentiment. If void of pleasure or pain, it is full of ennui; for this last is also a sentiment like pleasure and pain. _Spirit_. And, since all your pleasures are like cobwebs, exceedingly fragile, thin and transparent, ennui penetrates their tissue, and saturates them, just as air penetrates the webs. I believe ennui is really nothing but the desire of happiness, without the illusion of pleasure and the suffering of pain. This desire, we have said, is never completely satisfied, since true pleasure does not exist. So that human life may be said to be interwoven with pain and ennui, and one of these sentiments disappears only to give place to the other. This is the fate of all men, and not of yourself alone. _Tasso_. What remedy is there for ennui? _Spirit_. Sleep, opium, and pain. The last is the best of the three, because he who suffers never experiences ennui. _Tasso_. I would rather submit to ennui for the rest of my life, than take such medicine. But its force and strength may be diminished by action, work, and even other sentiments; though these do not entirely free us from ennui, since they are unable to give us real pleasure. Here in prison however, deprived of human society, without even the means of writing, reduced for an amusement to counting the ticks of the clock, looking at the beams, cracks, and nails of the ceiling, thinking about the pavement stones, and watching the gnats and flies which flit across my cell, I have nothing to relieve for a moment my burden of ennui. _Spirit_. How long have you been reduced to this kind of life? _Tasso_. For many weeks, as you know. _Spirit_. Have you felt no variation in the ennui which oppresses you, from the first day until now? _Tasso_. Yes. I felt it more at first. Gradually my mind is becoming accustomed to its own society; I derive more and more pleasure from my solitude, and by practice I am acquiring so great a readiness in conversation, or rather chattering to myself, that I seem to have in my head a company of talkative people, and the most trifling object is now sufficient to give rise to endless discourse.