16 Wherefore let him diligently apply himself so as to acquire daily a greater facility in biblical as well as in other oriental languages and to support his interpretation by the aids which all branches of philology supply. This indeed St. Jerome strove earnestly to achieve, as far as the science of his time permitted; to this also aspired with untiring zeal and no small fruit not a few of the great exegetes of the sixteenth and seventeenth centuries, although the knowledge of languages then was much less than at the present day. In like manner therefore ought we to explain the original text which, having been written by the inspired author himself, has more authority and greater weight than any even the very best translation, whether ancient or modern; this can be done all the more easily and fruitfully, if to the knowledge of languages be joined a real skill in literary criticism of the same text.
Source: Divino Afflante Spiritu (Vatican.va)