Read it through once

It is, perhaps, more correct to say of Byron, that he was charged with the spirit of revolt rather than with the revolutionary spirit. The revolutionary spirit was in him indefinite, inarticulate; he offered nothing to put in the place of the social and political evils against which he rebelled. There is nothing CONSTRUCTIVE in his poetry. But if his great passion-capital, his keen spiritual susceptibility, and his great power of vigorous expression, had been brought into the service of constructive thought, he might have been a restorative power in his generation.