Platon
Katotohanan
Kaalaman
René_Descartes
John_Locke
Pamamaraang_makaagham
Epistemolohiya
Immanuel_Kant
Ptolomeo
Karanasan
Milagro
Pangangatwiran
Teoryang_makaagham
Banal
David_Hume
Realismo
Pagmamalas
Himagsikang_Pang-agham
Pilosopiya_ng_agham
Søren_Kierkegaard
Optimismo
Epikureismo
Agnostisismo
Bertrand_Russell
Pakiramdam
Kritikal_na_pag-iisip
Humanismo
Ludwig_Wittgenstein
Logos
Dogma
Paradigma
Pragmatismo
Positibismong_lohikal
Araling_pangkomunikasyon
Pierre_Gassendi
Teoryang_Dempster-Shafer
Xenophanes
Kakayahang_mapasinungalingan
Empirikal_na_pananaliksik
Empirikal_na_ebidensya
Utak_sa_isang_tangke
Metateoriya
Extraordinary_claims_require_extraordinary_evidence
Gilbert_Harman