as you have brewed, so you must drink

— “So, Jim,” said the doctor sadly, “here you are. As you have brewed, so shall you drink, my boy. Heaven knows, I cannot find it in my heart to blame you, but this much I will say, be it kind or unkind: when Captain Smollett was well, you dared not have gone off; and when he was ill and couldn’t help it, by George, it was downright cowardly!”