in the course of this transitory life perpetuate our name and seed, which is done by a progeny issued from us in the lawful bonds of matrimony.
This portion of the letter is almost a sermon being sent to Pantagruel. As the tone of the letter is already formal, the content in which his father is discussing is traditional and mature. He explains this to his son contrasting the majorly satirical piece. The continuance of a family line is not an easy conversation to have or explain especially during this time when marriage was vital to social survival.