Philo Judaeus Quod Deterius Potiori Insidiari Soleat 134

[134] In some of the best governed cities of the world they say that such a custom as this prevails. When any man who has not lived well attempts to deliver his opinion, either in the council or in the assembly of the people, he is not permitted to do so by his own mouth, but is compelled by the magistrates to deliver his opinion to some virtuous and honourable man to explain in his behalf; and then he, when he has heard what he wishes said, rises up and unfolds the meaning of the sewn up mouth of his instructor, becoming his extempore pupil; and he displays the imaginations of another, scarcely considering the original concern for them even in the rank of a hearer or spectator. So some people do not choose to receive even benefits from unworthy persons, but look upon the injury accruing from the shame of taking their advice as greater than the advantage which can be derived from it.