ἀγεωμέτρητος μηδεὶς εἰσίτω → no one ignorant of geometry may enter, let no one ignorant of geometry enter, let no one ignorant of geometry come in
middle voice from a compound of κατά and a derivative of ὀπτάνομαι (compare ἔσοπτρον); to mirror oneself, i.e. to see reflected (figuratively): behold as in a glass.
