34. Nor is it to the point to say that the very smallest and briefest moment of time that separates the birth of twins, produces great effects in nature, and in the extremely rapid motion of the heavenly bodies. For, although I may grant that it does produce the greatest effects, yet the astrologer cannot discover this in the constellations, and it is by looking into these that he professes to read the fates. If, then, he does not discover the difference when he examines the constellations, which must, of course, be the same whether he is consulted about Jacob or his brother, what does it profit him that there is a difference in the heavens, which he rashly and carelessly brings into disrepute, when there is no difference in his chart, which he looks into anxiously but in vain? And so these notions also, which have their origin in certain signs of things being arbitrarily fixed upon by the presumption of men, are to be referred to the same class as if they were leagues and covenants with devils.