Finally, the third demand I have to make on the reader might indeed be tacitly assumed, for it is nothing but an acquaintance with the most important phenomenon that has appeared in philosophy for two thousand years, and that lies so near us:
zeren filosofian bi mila urte hauetan azaldu den agerpen garrantzitsuena, eta gugandik hain hurbil dagoena ezagutzea besterik ez baita.