In the same way every manifestation of the will, including that which expresses itself in the human organism, wages a constant war against the many physical and chemical forces which, as lower Ideas, have a prior right to that matter.
horrela edozein agerpenek, baita nahimen-agerpenak ere, giza organismoan aurkezten denak, borroka iraunkor bat dauka indar fisiko eta kimiko ugariekin, zeinek ideia behereago gisara lehenagoko eskubidea baitute materia harekiko.