ποριστέον
From LSJ
δός μοι πᾷ στῶ καὶ τὰν γᾶν κινήσω → give me a place to stand and I will move the earth, give me a place to stand and I'll move the earth, give me the place to stand and I shall move the earth, give me a place to stand and with a lever I will move the whole world, give me a firm spot to stand and I will move the world, give me a lever and a place to stand and I will move the earth, give me a fulcrum and I shall move the world
English (LSJ)
one must provide, Epicur.Fr. 481, Chrysipp.Stoic.3.172, Iamb.in Nic.p.58P.
Greek (Liddell-Scott)
ποριστέον: ῥημ. ἐπίθ., δεῖ πορίζειν, Σχόλ. εἰς Εὐρ. Ὀρ. 671.