It may be remembered from the Second Book that in the whole of nature, at all the grades of the objectification of will, there was a necessary and constant conflict between the individuals of all species; and in this way was expressed the inner contradiction of the will to live with itself.
Gogoan dugu, bigarren liburutik, natura osoan nahimenaren objektibazioaren maila guztietan derrigor etengabeko borroka bat zegoela espezie guztietako banakoen artean eta horren berorren bitartez bizitzeko nahimenak bere buruarekiko duen antagonismo barnekoa adierazten zela.