πάντες γὰρ οἱ λαβόντες μάχαιραν ἐν μαχαίρῃ ἀπολοῦνται → all they that take the sword shall perish with the sword
subs.
P. δόγμα, τό. Opinion: P. and V. γνώμη, ὁ; see opinion. The writings of Anaxagoras of Clazomenae are full of these doctrines: P. τὰ Ἀναξαγόρου βιβλία τοῦ Κλαζομενίου γέμει τούτων τῶν λόγων (Plat., Ap. 26D).