In this early Roman reference to Ireland we get the keynote to all
later Irish history--a warring down on the one hand, so that freedom
might be put out of sight; an eternal resistance, on the other, so
that it might be upheld.

It was this struggle that Ireland sought to maintain against every
form of attack, down through Danish, Norman, Tudor, Stuart, and
Cromwellian assault, to the larger imperialism of the nineteenth
century, when, as Thierry, the historian of the Norman Conquest,
tells us, it still remained the one "lost cause" of history that
refused to admit defeat. "This indomitable persistency, this faculty
of preserving through centuries of misery the remembrance of lost
liberty and of never despairing of a cause always defeated, always
fatal to those who dared to defend it, is perhaps the strangest and
noblest example ever given by any nation."

The resources Ireland opposed to her invaders have been unequal to
the founding of a great state, but have preserved a great tradition.
The weakness of Ireland lay in the absence of a central organization,
a state machine that could mobilize the national resources to defend
the national life. That life had to depend for its existence, under
the stress of prolonged invasion, on the spontaneous patriotism and
courage of individuals. At times one clan alone, or two clans,
maintained the struggle. Arrayed against them were all the resources
of a mighty realm--shipping, arms, munitions of war, gold,
statecraft, a widespread and calculating diplomacy, the prestige of a
great Sovereign and a famous Court--and the Irish clan and its
chieftain, by the sheer courage of its members, by their bodily
strength and hardihood and feats of daring, for years kept the issue