Epistemologia
Epistemologia (ab Anglico epistemology a verbis Graecis ἐπιστήμη 'scientia' + λόγος 'sermo; ratio' deductum) est pars philosophiae quae de natura et finibus scientiae et perceptionis tractat. Quaestiones magni momenti in epistemologia sunt:
 Quid sit scientia
 Quomodo adsumatur scientia
 Quot res sciri possint.

Disceptationes in hac disciplina ortae plerumque ad ingenium scientiae explicandum contulerunt, et quidem ad id pertinuerunt, quomodo haec disputationes ad notiones propinquas (veritatem, fidem, iustificationem) referantur. Sceptici autem docent nullam scientiam certam esse. Omnia haec aliquando doctrina scientiae appellantur.

Nomen epistemology a Iacobo Friderico Ferrier (1808–1864) philosopho Scotico Anglice excogitatum est.

Scientia quod, scientia quomodo, scientia per familiaritatem 
Hoc in commentario, et latissime in epistemologia, genus scientiae usitate disceptum est logica propositionalis, etiam "scientia quod" appellatum, notio quae a "scientia quomodo" et "scientia per familiaritatem" distinguenda est. Exempli gratia: in mathematica, scitur quod 2 + 2 = 4, sed est scientia quomodo addere duos numeros et scire personam (e.g., se), locum (e.g., sui locus natalis), rem (e.g., automobilia), vel industriam (e.g., additio). Nonnulli philosophi putant esse distinctionem magni momenti inter "scientiam quod," "scientiam quomodo," et "scientiam per familiaritatem," quarum epistemologia praecipue primam curat.

Bertrandus Russell in libro Problems of Philosophy scientiam per descriptionem (genus scientiae quod) et scientiam per familiaritatem insigniter distinguit. Gilbertus Ryle saepe habetur in The Concept of Mind ('Notio mentis') distinctionem "scientiae quomodo" et "scientiae quod" vehementius dixisse. In Personal Knowledge, Michael Polanyi arguit "scientiam quomodo" et "scientiam quod" ad epistemologicam attingunt; per exemplum actionis hominis qui se librat cum birotam vehitur, subicit theoreticam physicae scientiam usum quomodo vehi substituere non posse, et scire quomodo ambo instituuntur et conduntur esse magni momenti. Haec positio necessario est positio Ryle, qui arguit non confiteri distinctionem "scientiae quod" et "scientiae quomodo" ad regressus vitiosos ducere.

Temporibus recentioribus, nonnulli epistemologi (Greco, Kvanvig, Sosa, Zagzebski) arguerunt epistemologiam proprietates hominum (h.e., virtutes intellectus) et non solum proprietates propositionum vel animorum propositionalium aestimandam esse.

Scholae Epistemologiae 
Empirismus
Gnosologia
Ontologia
Paradigma
Phaenomenologia
Philosophia mentis
Philosophia scientiae
Philosophia spatii et temporis
Rationalismus
Scientia cognitiva
Scepticismus

Epistemologi clarissimi 
Aristoteles
Renatus Cartesius
David Hume
Iohannes Locke
Immanuel Kantius
Benedictus de Spinoza

Agnotologia
Doctrina incertitudinis
Editologia
Epistemologia cybernetica
Epistemologia evolutionaris
Epistemologia formalis
Epistemologia Orientalis
Epistemologia reformata
Epistemologia socialis
Epistemologia virtutis
Evidentialismus
Evidentialitas
Metaepistemologia
Methodologia
Noologia
Nyaya
Ontologia physica
Phaneron
Probabilitas Bayesiana
Ratio scientifica
Sociologia scientiae
Transcendentia
Trilemma Agrippae

Notae

Bibliographia
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Wittgenstein, Ludwig. 1922. Tractatus Logico-Philosophicus. Conv. C. K. Ogden. Dover. Liber interretialis.

Epistemologia
Philosophia
Verba Graeca