ɪn ˈɛθɪks, ðə plˈæŋk ʌv kˈɑːɹniːdz ɪz ɐ θˈɔːt ɛkspˈɛɹɪmənt fˈɜːst pɹəpˈoʊzd baɪ ðɪ ˌækədˈɛmɪk skˈɛptɪk fɪlˈɑːsəfɚ kˈɑːɹniːdz ʌv sˈaɪɹɛn.
In ethics, the plank of Carneades is a thought experiment first proposed by the Academic Skeptic philosopher Carneades of Cyrene.