therefore an indistinct and not clearly manifested conception resembles an embryo which has not yet received any distinct character or similitude within the womb: but that which is clear and distinctly visible, is like one which is completely formed, and which is already fashioned in an artistic manner as to both its inward and its outward parts, and which has already received its suitable character. And with respect to these matters the following law has been enacted with great beauty and propriety: "If while two men are fighting one should strike a woman who is great with child, and her child should come from her before it is completely formed, he shall be muleted in a fine, according to what the husband of the woman shall impose upon him, and he shall pay the fine deservedly. But if the child be fully formed, he shall pay life for life." Exodus xxi. 22. 
For it was not the same thing, to destroy a perfect and an imperfect work of the mind, nor is what is only likened by a figure similar to what is really comprehended, nor is what is only hoped for similar to what really exists. On this account, in one case, an uncertain penalty is affixed to an uncertain action; in another, a definite punishment is enacted by law against an act which is perfected, but which is perfected not with respect to virtue, but with reference to what is done in an irreproachable manner, according to some act. For it is not she who has just received the seed, but she who has been for some time pregnant, who brings forth this offspring, professing boasting rather than modesty. For it is impossible that she who has been pregnant some time should miscarry, since it is fitting that the plant should be conducted to perfection by him who sowed it; but it is not strange if some mishap should befall the woman who was pregnant, since she was afflicted with a disease beyond the art of the physician.
 And do not suppose that Hagar is represented as beholding herself as pregnant, by the words, "seeing that she had conceived," but as beholding her mistress Sarah; for

 Exodus xxi. 22. 
 
afterwards she speaks of herself, and says, "Seeing that she was pregnant, she was despised before her." Genesis xvi. 4. Why so? Because the intermediate and indifferent arts, and the sciences in accord ance with them, see indeed of what they are pregnant, but they nevertheless see in every respect but dimly; but the sciences comprehend clearly and very distinctly. For science is something beyond art, having derived from reason a certain firmness and exemption from error;