He that needs a probation to convince him that two are not three, that white is not black, that a triangle is not a circle, &c., or any other two [determined] distinct ideas are not one and the same, will need also a demonstration to convince him that IT IS IMPOSSIBLE FOR THE SAME THING TO BE AND NOT TO BE.
Bi ez direla hiru, zuria ez dela beltza, triangelua ez dela zirkulua edo beste edozein bi ideia zehaztu eta bereizi ez direla bat bera konbentzimendu osoz onartzeko frogapena behar duenak, ezinezko da gauza bera izatea eta ez izatea maximaz konbentzitzeko ere frogapena beharko du.