To Archidamus (51)

for when we might have lived at ease, we made more wars than were necessary, but now, when we have no choice but to risk battle, we desire tranquility and deliberate about our own security. And yet those who wish to be free ought to shun a peace whose terms are dictated by the enemy as being not far removed from slavery, and should make treaties only when they have defeated their adversaries, or when they have made their forces equal to those of the enemy; for the kind of peace which each side will obtain will be decided by the manner in which they conclude the war.