Opus Majus

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Opus maius, 1750 edition
First page of a 1750 edition of Opus majus

The Opus Majus (

Opus Tertium
, as a preliminary introduction to the other two.

Contents

The Opus Majus is divided into seven parts:

  1. Part one considers the obstacles to real wisdom and truth, classifying the causes of error (offendicula) into four categories: following a weak or unreliable authority, custom, the ignorance of others, and concealing one's own ignorance by pretended knowledge.
  2. Part two considers the relationship between
    Holy Scripture
    ) is the foundation of all sciences.
  3. Part three contains a study of Biblical
    Hebrew, and Arabic
    , as a knowledge of language and grammar is necessary to understand revealed wisdom.
  4. Part four contains a study of
    Julian Calendar, proposing to drop a day every 125 years from 325 CE (Council of Nicaea). He also noted the shifting of the Equinoxes to the Solstices.[2]
  5. Part five contains a study of
    lenses
    .
  6. Part six, De scientia experimentalis, a study of
    magic, which he also wrote about in De secretis operibus artis et naturae, et de nullitate magiae. It was a major influence on John Dee's theory of Archemastrie.[3]
  7. Part seven considers moral philosophy and ethics.

An incomplete version of Bacon's Opus Majus was published by William Bowyer in London in 1733. It was edited by Samuel Jebb from a manuscript at Trinity College, Cambridge which omitted the seventh part.

As a recent paper emphasizes, this major work cannot be usefully read exclusively in the context of the history of science and philosophy while forgetting to consider Bacon's religious commitment to the

optic
studies, from Opus Majus

Notes

  1. ^ Opus Majus in year 1267 was accompanied by a letter of dedication to the Pope.
  2. ^ David Ewing Duncan, The Calendar, 2011, pp. 3–5.
  3. .
  4. .

References

External links

1750 edition of Opus majus