Demosthenes Exordia 34

[1] It was not hard to see, men of Athens , the other day when you thought there was no need to hear those who desired to speak in opposition to the views of a certain speaker, ¹ that what is now coming to pass would occur—that those who were then prevented from speaking would do so before a subsequent meeting of the Assembly. ² If, therefore, you shall do the same as before, and refuse to listen to those who wish to support the decisions then approved, these men in turn will take the matter to the next meeting and denounce these decisions.

[2] In no way, men of Athens , could your situation be made worse nor could you show yourselves more absurd than if none of your decisions should seem to be finally settled and, disregarding the policies that pay, you should achieve no forward step, but, like the crowds at shows, side with those who captivate you first. ³ Do not let this happen, men of Athens , but performing this tedious duty and giving impartial audience to both sides, first choose a policy you will also carry out and then assume that whoever opposes measures thus once sanctioned is unprincipled and disloyal to you.

[3] For while it is pardonable that a man who has not obtained a hearing should feel convinced that he has himself better plans thought out than those approved by you, yet to go on acting shamelessly after you have given a hearing and decided between alternatives, instead of giving in to the judgement of the majority and retiring, would plainly justify suspicion of some other motive by no means honorable. As for me, although I should have thought it proper to remain silent on this occasion had I observed you abiding by your previous decisions—for I am one of those who are convinced that these are to your advantage—yet, now that certain members seem to have changed their minds because of the speeches made by these men, even though you perhaps know that what they say is neither true nor for your good, I will nevertheless make this clear in case you are unaware of it.