We are liable to frequent errors in the research of those facts which exercise a serious influence upon the fate of mankind, since nothing is more difficult than to appreciate their real value.
Gizadiaren zorian legeek zertzen duten benetako eragina egitateetan ikertzen duena hutsegite handien arriskupean dago, ez baitago ezer baloragaitzagorik egitate bat baino.