4795. From all this it is evident why the tongue is assigned a double office, namely, the office of aiding in speech, and that of aiding in nourishment. For insofar as it aids in nourishment it corresponds to the affection of knowing, understanding, and being wise as to truths; for which reason also wisdom [sapientia] and being wise [sapere] are so called from relish [sapor]; and insofar as it aids in speech, it corresponds to the affection of thinking and producing truths.