As early as 1592, in a famous letter to his uncle, Lord Burghley, Bacon declared “all knowledge” to be his province and vowed his personal commitment to a plan for the full-scale rehabilitation and reorganization of learning. In effect, he dedicated himself to a long-term project of intellectual reform, and the balance of his career can be viewed as a continuing effort to make good on that pledge. In 1620, while he was still at the peak of his political success, he published the preliminary description and plan for an enormous work that would fully answer to his earlier declared ambitions. The work, dedicated to James, was to be called Magna Instauratio (that is, the “grand edifice” or Great Instauration ), and it would represent a kind of summa or culmination of all Bacon’s thought on subjects ranging from logic and epistemology to practical science (or what in Bacon’s day was called “natural philosophy,” the word science being then but a general synonym for “wisdom” or “learning”).
Bacon has been accused of servility, of dissimulation, of various base motives, and their filthy brood of base actions, all unworthy of his high birth, and incompatible with his great wisdom, and the estimation in which he was held by the noblest spirits of the age. It is true that there were men in his own time, and will be men in all times, who are better pleased to count spots in the sun than to rejoice in its glorious brightness. Such men have openly libelled him, like Dewes and Weldon, whose falsehoods were detected as soon as uttered, or have fastened upon certain ceremonious compliments and dedications, the fashion of his day, as a sample of his servility, passing over his noble letters to the Queen, his lofty contempt for the Lord Keeper Puckering, his open dealing with Sir Robert Cecil, and with others, who, powerful when he was nothing, might have blighted his opening fortunes for ever, forgetting his advocacy of the rights of the people in the face of the court, and the true and honest counsels, always given by him, in times of great difficulty, both to Elizabeth and her successor. When was a "base sycophant" loved and honoured by piety such as that of Herbert, Tennison, and Rawley, by noble spirits like Hobbes, Ben Jonson, and Selden, or followed to the grave, and beyond it, with devoted affection such as that of Sir Thomas Meautys.