Once more unto the breach, dear friends, once more,
Or close the wall up with our English dead!
In peace there 's nothing so becomes a man
As modest stillness and humility;
But when the blast of war blows in our ears,
Then imitate the action of the tiger:
Stiffen the sinews, summon up the blood.
-- William Shakespeare (1564-1616), King Henry V
-- Act iii, Sc. 1