John Milton is arguably the greatest writer of English who ever lived. Paradise Lost is the greatest epic poem ever written. His Areopagitica was a beacon for the concepts of freedom of speech and freedom of the press; and preceded the founding fathers of the United States of America by over one hundred years. He was so possessed with his craft that he went blind writing by candle light. The entirety of Paradise Regained was recorded through dictation.
From Wikipedia
John Milton (9 December 1608 – 8 November 1674) was an English poet, polemicist, and civil servant. His 1667 epic poem Paradise Lost, written in blank verse and including twelve books, was written in a time of immense religious flux and political upheaval. It addressed the fall of man, including the temptation of Adam and Eve by the fallen angel Satan and God’s expulsion of them from the Garden of Eden. Paradise Lost elevated Milton’s reputation as one of history’s greatest poets. He also served as a civil servant for the Commonwealth of England under its Council of State and later under Oliver Cromwell.
Milton achieved fame and recognition during his lifetime; his celebrated Areopagitica (1644), written in condemnation of pre-publication censorship, is among history’s most influential and impassioned defences of freedom of speech and freedom of the press. His desire for freedom extended beyond his philosophy and was reflected in his style, which included his introduction of new words (coined from Latin and Ancient Greek) to the English language. He was the first modern writer to employ unrhymed verse outside of the theatre or translations.