Each thinks that their inertia will do no harm, and that it is someone else’s responsibility rather than theirs to make some provision for their futu… - Thucydides

they will neither become over-confident because of their successes in war, nor, because of the charms and blessings of peace, will they put up the acts of aggression. -p104

They sent him (Phormio) twenty ships, but ordered the commander of them to go to Crete first; for Nicias of Gortys in Crete, who was the proxenus of the Athenians, had induced them to send a fleet against Cydonia, a hostile town which he promised to reduce.But he really invited them to please the Polichnitae, who are neighbours of the Cydoniatae.

So the Athenian commander took the ships, went to Crete, and joined the Polichnitae in ravaging the lands of the Cydoniatae; there, owing to contrary winds and bad weather, a considerable time was wasted.

(Book 2 Chapter 85.5-6)

We must not disguise from ourselves that we go to found a city among strangers and enemies, and he who undertakes such an enterprise should be prepared to become master of the country the first day he lands, or failing in this find everything hostile to him.