Against Leptines (152-153)

But the most effective retort is one which applies to all the commissioners alike. Each one of them has often before served as commissioner for some business or other. Now you have a very sound law—not, of course, directed against these men, but framed to prevent any commissioner from using his opportunity for profit or blackmail—that no one, elected by the people, be permitted to serve as commissioner more than once.

Surely those who are going to advocate a law and urge its necessity ought to show themselves ready to obey existing laws; otherwise it is absurd for them to defend one law as commissioners and violate another themselves. Take and read the law which I cite.

[The law is read]

That, Athenians, is both an old and a sound law,[*] which the commissioners will be careful not to violate, if they are wise.