to be different from each other in respect of health. Moreover, Posidonius, or any other asserter of the fatal influence of the stars, will have enough to do to find anything to say to this, if he be unwilling to impose upon the minds of the uninstructed in things of which they are ignorant. But, as to what they attempt to make out from that very small interval of time elapsing between the births of twins, on account of that point in the heavens where the mark of the natal hour is placed, and which they call the "horoscope," it is either disproportionately small to the diversity which is found in the dispositions, actions, habits, and fortunes of twins, or it is disproportionately great when compared with the estate of twins, whether low or high, which is the same for both of them, the cause for whose greatest difference they place, in every case, in the hour on which one is born; and, for this reason, if the one is born so immediately after the other that there is no