Although I am even now perfectly satisfied with the latter as far as contents, order, and mode of presentation, and the care that I have expended in weighing and testing every sentence before writing it down, are concerned (for it has taken me years to satisfy myself fully, not only as regards the whole, but in some cases even as to the sources of one particular proposition);
ba ni oso pozik banago ere obra horrekin, edukin, ordena eta metodoari dagokionez, eta proposizio bakoitza, aurkeztu baino lehen, kontuz-kontuz aztatu eta aztertu delako (izan ere batzuetan urteak behar izan baititut erabat askietsita gelditzeko, ez lan osoari buruz bakarrik, baizik eta batzuetan proposizio bakar baten iturriei buruz ere bai);