I forgive the many for the sake of the few, the living for the dead.
On calling an end to the sacking of Athens, after a plea on its behalf by two Athenians loyal to Rome, as quoted in The Story of Rome : From the Earliest Times to the Death of Augustus (1900) by Mary Macgregor; also said to be in a translation of Plutarch's works.
No friend ever served me, and no enemy ever wronged me, whom I have not repaid in full.
His self-made epitaph, as quoted in Heroes of History : A Brief History of Civilization from Ancient Times to the Dawn of the Modern Age (2001) by Will Durant; variant translation: "...nor enemy harmed me"
He ought to have worked at the oar before steering the vessel.
Upon being handed the head of his enemy Gaius Marius the Younger (Also translated as: "First you must learn to pull an oar, only then can you take the helm")