All that we intend to bring out clearly through these investigations, the impossibility of attaining lasting satisfaction and the negative nature of all happiness, finds its explanation in what is shown at the conclusion of the Second Book:
Kontsiderazio hauek argitu nahi duten guztiak, asetze iraunkorraren lortuezintasunak eta zorion ororen negatibitateak, bigarren liburuaren itxieran erakutsi den horretan du bere azalpena: