Ῥῆμα παράκαιρον τὸν ὅλον ἀνατρέπει βίον → Vitae lues vox missa non in tempore → Ein Wort zur Unzeit stülpt das ganze Leben um
As opposed to really, in fact: use P. and V. λόγῳ, λόγῳ μέν.