History of the Peloponnesian War

A single defeat at sea is in all likelihood their ruin: should they hold out, in that case there will be the more time for us to exercise ourselves in naval matters; and as soon as we have arrived at an equality in science, we need scarcely ask whether we shall be their superiors in courage. For the advantages that we have by nature they cannot acquire by education; while their superiority in science must be removed by our practice.

The money required for these objects shall be provided by our contributions: nothing indeed could be more monstrous than the suggestion that, while their allies never tire of contributing for their own servitude, we should refuse to spend for vengeance and self-preservation the treasure which by such refusal we shall forfeit to Athenian rapacity, and see employed for our own ruin.