The story of reducing his exuberance has been told of other authors; and, though doubtless true of every fertile and copious mind, seems to have been gratuitously transferred to Milton.

What he has told us, and we cannot now know more, is, that he composed much of this poem in the night and morning, I suppose before his mind was disturbed with common business; and that he poured out with great fluency his “unpremeditated verse.” Versification, free, like this, from the distresses of rhyme, must, by a work so long, be made prompt and habitual; and, when his thoughts were once adjusted, the words would come at his command.

Lives of the English Poets: Waller, Milton, Cowley — Part 63

At what particular times of his life the parts of his work were written, cannot often be known. The beginning of the third book shows that he had lost his sight, and the introduction to the seventh, that the return of the king had clouded him with discountenance; and that he was offended by the licentious festivity of the Restoration. There are no other internal notes of time. Milton, being now cleared from all effects of his disloyalty, had nothing required from him but the common duty of living in quiet, to be rewarded with the common right of protection; but this, which, when he skulked from the approach of his king, was perhaps more than he hoped, seems not to have satisfied him; for no sooner is he safe, than he finds himself in danger, “fallen on evil days and evil tongues, and with darkness and with danger compassed round.” This darkness, had his eyes been better employed, had undoubtedly deserved compassion; but to add the mention of danger was ungrateful and unjust. He was fallen indeed on “evil days;” the time was come in which regicides could no longer boast their wickedness. But of “evil tongues” for Milton to complain, required impudence at least equal to his other powers; Milton, whose warmest advocates must allow that he never spared any asperity of reproach or brutality of insolence.

Lives of the English Poets: Waller, Milton, Cowley — Part 63

But the charge itself seems to be false; for it would be hard to recollect any reproach cast upon him, either serious or ludicrous, through the whole remaining part of his life. He pursued his studies or his amusements, without persecution, molestation, or insult. Such is the reverence paid to great abilities, however misused; they, who contemplated in Milton the scholar and the wit, were contented to forget the reviler of his king.

Lives of the English Poets: Waller, Milton, Cowley — Part 63