History of the Peloponnesian War

"This assembly was, it is true, convened to consider the subject of our preparations, namely, in what way we ought to make the expedition to Sicily. My opinion, however, is, that we ought still to consider this very point, whether it be better to send out our ships: and not on such slight deliberation on matters of great moment, at the instigation of aliens, to take upon ourselves a war, with which we have nothing to do.

And yet I, for my own part, receive honour from such a policy, and have less fear than others for my own personal safety: (though I consider that man to be an equally good citizen who takes some forethought both for his person and his property; for such a man would, for his own sake, be most desirous that his country also should prosper:) nevertheless, neither aforetime have I ever spoken contrary to my convictions, for the sake of being honoured above others, nor will I now, but as I think best, so will I speak.

And though against your inclinations my words would be powerless, should I advise you to keep what you have, and not expose your present possessions to danger for things which are uncertain and future; yet that neither are you timely in your haste, nor the objects of your ambition easy to attain, on these points I will give you instruction.