WWKD (What Would Karl Do?) - stamina, starts and fits

From The Eighteenth Brumaire of Louis Bonaparte:

"Bourgeois revolutions, like those of the eighteenth century, storm more swiftly from success to success; their dramatic effects outdo each other; men and things seem set in sparkling brilliants; ecstasy is the everyday spirit: but they are short lived; soon they have attained their zenith, and a long depression lays hold of society before it learns soberly to assimilate the results of its storm and stress period. Proletarian revolutions, on the other hand, like those of the nineteenth century, criticise themselves constantly, interrupt themselves continually in their own course, come back to the apparently accomplished in order to begin it afresh, deride with unmerciful thoroughness the inadequacies, weaknesses and paltrinesses of their first attempts, seem to throw down their adversary only in order that he may draw new strength from the earth and rise again more gigantic before them, recoil ever and anon from the indefinite prodigiousness of their own aims, until the situation has been created which makes all turning back impossible, and the conditions themselves cry out:

Hic Rhodus, hic salta!
Hier ist die Rose, hier tanze!
[Here is Rhodes, leap here!
Here the rose, dance here!]