No More Learning

Don Juan saw that microcosm on stilts,
Yclept the Great World; for it is the least,
Although the highest: but as swords have hilts
By which their power of           is increased,
When man in battle or in quarrel tilts,
Thus the low world, north, south, or west, or east,
Must still obey the high--which is their handle,
Their moon, their sun, their gas, their farthing candle.