Will you really acquit this damned man who never did you anything good from his first public act but instead has done every evil he could?

[τὸν δὲ κατάρατον τοῦτον, ὃς ἀγαθὸν μὲν ὑμᾶς οὐδεπώποτε πεποίηκεν ἐξ οὗ πρὸς τὴν πόλιν προσελήλυθε, κακὸν δ᾿ ὅ τι δυνατός ἐστιν, ἀφήσετε]

Dinarchus (c. 361-291 BC) Greek orator and speech writer [Dinarch, Deinarchus, Δείναρχος]

“Against Aristogiton”
    (Source)

Alt. trans.: "But this accursed wretch has never done you any good since he began his public career, but all the harm he could. Will you then pardon him?" [tr. Garland (1902)]

Alt. trans: "Will you acquit this accursed man who has not done you a service ever since he has been in politics but has been the greatest possible menace?" [tr. Burtt (1962)]