ποιητὴς, ὁπόταν ἐν τῷ τρίποδι τῆς Μούσης καθίζηται, τότε οὐκ ἔμφρων ἐστίν → whenever a poet is seated on the Muses' tripod, he is not in his senses
send out of one's mind: P. and V. ἐκπλήσσω, ἐκπλήσσειν, ἐξιστάναι; see madden.