only set us on investigating whether, even in these bodies, the changes may not be attributable to some other than a sidereal cause. For what is there which more intimately concerns a body than its sex? And yet, under the same position of the stars, twins of different sexes may be conceived. Wherefore, what greater absurdity can be affirmed or believed than that the position of the stars, which was the same for both of them at the time of conception, could not cause that the one child should not have been of a different sex from her brother, with whom she had a common constellation, whilst the position of the stars which existed at the hour of their birth could cause that she should be separated from him by the great distance between marriage and holy virginity?
Now, will any one bring forward this, that in