Na grčku filozofiju donekle su uticale starija literatura o mudrosti i mitološke kosmogonije drevnog Bliskog Istoka, mada se i dalje raspravlja o obimu tog uticaja. Klasicista Martin Litčfild Vest navodi, „kontakt s orjentalnom kosmologijom i teologijom pomogao je u liberaciji imaginacije ranih grčkih filozofa; to im je zasigurno dalo mnoge sugestivne ideje. Ali oni su sebe učili razumu. Filozofija je, kako je mi razumemo, grčka tvorevina”.[4]
Kasnija filozofska tradicija bila je u tolikoj meri pod uticajem Sokrata, kao što ga je predstavio Platon, da se filozofija razvijena pre Sokrata konvencionalno naziva predsokratskom filozofijom. Periodi koji su sledili, do i nakon ratova Aleksandra Velikog, su periodi „klasične grčke” i „helenističke” filozofije.
Konvencija o imenovanju onih filozofa koji su bili aktivni pre Sokratove smrti kao presokratovci se ustalila nakon izdavanja Herman Dilsove pulikacije 1903. godine, iako taj pojam nije nastao u njoj.[5] Taj izraz se smatra korisnim, jer je ono što je postalo poznato pod nazivom „atenska škola” (sastavljena od Sokrata, Platona i Aristotela) nagovestilo uspon novog pristupa filozofiji. Teza Fridriha Ničea da je ovaj pomak započeo sa Platonom, a ne sa Sokratom (i otuda njegova nomenklatura „predplatonske filozofije”) nije sprečila prevladavanje „predsokratovske” distinkcije.[6]
Predsokratisti su se prvenstveno bavili kosmologijom, ontologijom i matematikom. Oni su se razlikovali od „nefilozofa” po tome što su odbacivali mitološka objašnjenja u korist argumentovanog diskursa.[7]
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