ὃς ἂν βούληται τῆν γῆν κινῆσαι κινησάτω τὸ πρῶτον ἑαυτόν → let him that would move the world first move himself
ob-structĭo: ōnis, f. obstruo,
I a building before or against, a closing up by building, a blocking up.
I Lit. (post-class.): corporum, Arn. 2, 63.—
II Trop., an obstruction, a barrier: haec obstructio non diuturna est, Cic. Sest. 9, 22.