1225?-1274 1724-1804 1904-1984 apriori comparative connaissance contributionsindoctrineoftruthkant contributionsindoctrineoftruththomas contributionsintheoryofknowledgelonergan contributionsintheoryofknowledgethomas etlathéoriedelaconnaissancekant etlathéoriedelaconnaissancelonergan immanuel knowledge philosophy theoryof théoriedela truth