Tertullian To His Wife Book I But if we listen to the apostle, forgetting what is behind, let us both strain after what is before,[29] Tertullian On Modesty according to Jeremiah; and "forgetful of former things, we are reaching forward,"[53] Archelaus Acts of the Disputation with the Heresiarch Manes in other words, when one reaches forth unto those things which are before, he will forget those which are behind.[581]