History of the Peloponnesian War

As for taking trouble about what was thought honourable, no one was forward to do it; deeming it uncertain whether, before he had attained to it, he would not be cut off; but every thing that was immediately pleasant, and that which was conducive to it by any means whatever, this was laid down to be both honourable and expedient.

And fear of gods, or law of men, there was none to stop them; for with regard to the former they esteemed it all the same whether they worshipped them or not, from seeing all alike perishing; and with regard to their offences [against the latter], no one expected to live till judgment should be passed on him, and so to pay the penalty of them; but they thought a far heavier sentence was impending in that which had already been passed upon them; and that before it fell on them, it was right to have some enjoyment of life.