sane Cassii et Brutorum exitus paternis inimicitiis datos, quamquam fas sit privata odia publicis utilitatibus remittere
Translation :
Even granting that the deaths of Cassius and of the Bruti were sacrifices to a hereditary enmity (though duty requires us to waive private feuds for the sake of the public welfare)
Edition :
Annales ab excessu divi Augusti. Cornelius Tacitus. Charles Dennis Fisher. Clarendon Press. Oxford. 1906.
Complete Works of Tacitus. Tacitus. Alfred John Church. William Jackson Brodribb. Sara Bryant. edited for Perseus. New York. : Random House, Inc. Random House, Inc. reprinted 1942.