Aristophanes, Clouds 181-3
Strepsiades has been hearing examples of Socrates’ scientific investigations and is now impatient to enrol as a student.
ἄνοιγ’ ἄνοιγ’ ἁνύσας τὸ φροντιστήριον
καὶ δεῖξον ὡς τάχιστά μοι τὸν Σωκράτη.
μαθητιῶ γάρ. ἀλλ’ ἄνοιγε τὴν θύραν.
Hurry, open up! Open up the Thinkery and show me this Socrates as soon as possible! I want to be a student! Open the door!