History of the Peloponnesian War

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

Fearing this, and knowing that we shall have need of much good counsel and more good fortune—a hard matter for mortal men to aspire to—I wish as far as may be to make myself independent of fortune before sailing, and when I do sail, to be as safe as a strong force can make me.