Roger Bacon
'Doctor Mirabilis' who championed experiment and mathematics centuries early.
Overview
An English Franciscan and polymath, Roger Bacon was an early and forceful advocate of experimental science and mathematics within the scholastic world. He studied optics, languages, alchemy, and astronomy, and urged that knowledge advance through observation and experiment ('scientia experimentalis') and through the mastery of mathematics and languages. Ahead of his time and often at odds with authority, he foresaw devices and methods that would arrive only centuries later.
What they supported — and why
Experimental science
SupportedKnowledge must be tested and confirmed by experience and experiment, not by authority alone.
WhyReasoning can reach a conclusion, but only experience 'certifies' it, removing doubt and revealing nature's secrets.
Mathematics as the gateway
SupportedMathematics is the door and key to the other sciences and to understanding nature.
WhyThe natural world is quantitatively ordered, so without mathematics its causes cannot be grasped.
The reform of learning
SupportedMaster languages and the sciences to correct errors and advance knowledge.
WhyGarbled translations and ignorance corrupt learning, so linguistic and scientific reform is urgently needed.
Causes championed
- The experimental method
- Mathematical science
- Educational reform
Issues wrestled with
- How is knowledge certified?
- What grounds the sciences?
- How should learning be reformed?
Hurdles faced
- Censorship and suspicion within his order (reportedly restricted or imprisoned)
- Ideas far ahead of the means to realize them
Works & books
2 catalogued. Status shows how much survives to today.
Opus Majus
SurvivesHis great survey of the sciences, languages, and the case for experimental method.
Opus Minus; Opus Tertium; works on optics
PartialCompanion works and studies of light and vision.
Read the texts free
1 of Roger Bacon’s works are free to read in full — public-domain English editions on Project Gutenberg, matched from Gutenberg’s own catalogue.
Every edition online — Open Library catalogues 110 works & editions, 32 of them free to read in full.
The influence network
See Roger Bacon in the map →Influenced by
Influenced
In their words
“Without experiment nothing can be adequately known. Reasoning draws a conclusion, but experience alone certifies it.”
— Opus Majus
Legacy
A medieval herald of experimental, mathematical science, he anticipated the methods that would transform knowledge in the seventeenth century.
Further reading
Cross-checked against these authoritative references.