A baal keri contemplates [the text of the Shema] in his mind, but he does not recite the blessings [of the Shema], neither [the blessings] preceding it nor [those] following it. And with re-gard to food, he recites the blessings that follow [a meal], but he does not recite the blessings preceding [a meal]. R’ Yehudah says: He recites the blessings before them and following them.