XLIII. In the next place, not only are there all these variations with respect to animals, but there are also innumerable changes and varieties in men, and great differences between one man and another. (176) For not only do they form different opinions respecting the same things at different times, but different men also judge in different manners, some looking on things as pleasures, which others on the contrary regard as annoyances. For the things with which some persons are sometimes vexed, others delight in, and on the contrary the things, which some persons are eager to acquire and look upon as pleasant and suitable, those very same things others reject and drive to a distance as unsuitable and ill-omened. (177) At all events I have before now often seen in the theatre, when I have been there, some persons influenced by a melody of those who were exhibiting on the stage, whether dramatists or musicians, as to be excited and to join in the music, uttering encomiums without intending it; and I have seen others at the same time so unmoved that you would think there was not the least difference between them and the inanimate seats on which they were sitting; and others again so disgusted that they have even gone away and quitted the spectacle, stopping their ears with their hands, lest some atom of a sound being left behind and still sounding in them should inflict annoyance on their morose and unpleasable souls. (178) And yet why do I say this? Every single individual among us (which is the most surprising thing of all) is subject to infinite changes and variations both in body and soul, and sometimes chooses and sometimes rejects things which are subject to no changes themselves, but which by their intrinsic nature do always remain in the same condition. (179) For the same fancies do not strike the same men when they are well and when they are ill, nor when they are awake and when they are asleep, nor when they are young and when they are old. And a man who is standing still often conceives different ideas from those which he entertains when he is in motion; and also when he is courageous, or when he is alarmed; again when he is grieved, or when he is delighted, and when he is in love, he feels differently from what he does when he is full of hatred. (180) And why need I be prolix and deep dwelling on these points? For in short every motion of both body and soul, whether in accordance with nature or in opposition to nature, is the cause of a great variation and change respecting the appearances which present themselves to us; from which all sorts of inconsistent and opposite dreams arise to occupy our minds.