Tiberius and Caius Gracchus
Plutarch
Plutarch. Plutarch's Lives, Vol. X. Perrin, Bernadotte, translator. Cambridge, MA: Harvard University Press; London: William Heinemann Ltd., 1921.
In the first place, however, he begged Octavius in public, addressing him with kindly words and clasping his hands, to give in and gratify the people, who demanded only their just rights, and would receive only a trifling return for great toils and perils. But Octavius rejected the petition, and therefore Tiberius, after premising that, since they were colleagues in office with equal powers and differed on weighty measures, it was impossible for them to complete their term of office without open war, said he saw only one remedy for this, and that was for one or the other of them to give up his office.
Indeed, he urged Octavius to put to the people a vote on his own case first, promising to retire at once to private life if this should be the will of the citizens. But Octavius was unwilling, and therefore Tiberius declared that he would put the case of Octavius unless Octavius should change his mind upon reflection.