ButImustalsoremindyou，thatthepowerofdialecticalonecanrevealthis，andonlytoonewhoisadiscipleoftheprevioussciences。
Ofthatassertionyoumaybeasconfidentasofthelast。
Andassuredlynoonewillarguethatthereisanyothermethodofcomprehendingbyanyregularprocessalltrueexistenceorofascertainingwhateachthingisinitsownnature；fortheartsingeneralareconcernedwiththedesiresoropinionsofmen，orarecultivatedwithaviewtoproductionandconstruction，orforthepreservationofsuchproductionsandconstructions；andastothemathematicalscienceswhich，asweweresaying，havesomeapprehensionoftruebeing——geometryandthelike——theyonlydreamaboutbeing，butnevercantheybeholdthewakingrealitysolongastheyleavethehypotheseswhichtheyuseunexamined，andareunabletogiveanaccountofthem。Forwhenamanknowsnothisownfirstprinciple，andwhentheconclusionandintermediatestepsarealsoconstructedoutofheknowsnotwhat，howcanheimaginethatsuchafabricofconventioncaneverbecomescience？
Impossible，hesaid。
Thendialectic，anddialecticalone，goesdirectlytothefirstprincipleandistheonlysciencewhichdoesawaywithhypothesesinordertomakehergroundsecure；theeyeofthesoul，whichisliterallyburiedinanoutlandishslough，isbyhergentleaidliftedupwards；andsheusesashandmaidsandhelpersintheworkofconversion，thescienceswhichwehavebeendiscussing。Customtermsthemsciences，buttheyoughttohavesomeothername，implyinggreaterclearnessthanopinionandlessclearnessthanscience：andthis，inourprevioussketch，wascalledunderstanding。Butwhyshouldwedisputeaboutnameswhenwehaverealitiesofsuchimportancetoconsider？