From the book
The Summary of Physics Restored
Attributed to Jean d’Espagnet · Diotimos Editions · 2026
Browse this book’s lexicon →Orientation
At a Glance
- The wordThe preface’s admiratio is wonder: both an admission that one does not know and an impulse to find out. Its vocabulary of light connects intellectual discovery with the natural philosophy that follows.
- In the bookThe anonymous author asks readers to reconsider inherited doctrines without withholding honour from their authors. He describes his own movement from wonder to inquiry and from inquiry to publication, while repeatedly distinguishing probable conjecture from certainty.
- In this edition“Wonder” renders admiratio in the preface; “what is more probable” renders verisimilius in canon 17. The historical author’s professions of certainty and uncertainty are preserved, not replaced by the modern editor’s judgments.
- A place to readRead the whole address, especially To the Readers · Passage 2–To the Readers · Passage 5, beside canon 17: confidence in a reform of philosophy coexists with an express limit on knowledge of its earliest principle.
Meaning
Wonder has two faces in the opening address. It can spur a liberal mind to seek knowledge, yet it is itself evidence of ignorance. The author does not resolve that opposition by dismissing wonder once explanations begin. His account makes the recognition of a lack productive: the mind desires to understand what it is ashamed not to know. This is an intellectual emotion rather than a demonstration of any particular cosmological proposition.
The vocabulary of inquiry is also judicial. Received doctrines return to the anvil; authoritative names must not preoccupy the court; readers are asked to judge a case before condemning it. Such figures explain why “restoration” is not simply a claim to repeat ancient wisdom. The book claims the right to repair an inheritance while keeping its best achievements.
Use in the book
The address begins in retirement from public business (To the Readers · Passage 1). Leaving the court is represented not as deserting all responsibility but as entering the service of a larger commonwealth, the universe. Nature repays the relinquished splendour of fortune with her own light. This is an authorial self-presentation: the calm of domestic retreat permits a return to questions that have occupied him since youth.
In To the Readers · Passage 2 the objects of contemplation are deliberately many: Nature’s government, laws, order, harmony, effects, causes and resources. Wonder precedes assent. Nature first seems to offer another light through clouds, uncertain and distant; only gradually does the mind claim greater clarity. The passage makes the author’s conviction a narrated development rather than a premise readers are required to inherit unquestioningly.
To the Readers · Passage 3 identifies first matter, universal form and the elements as the most consequential disputed subjects. Their errors are roots of other errors. Wonder becomes love of knowledge, and love brings the mind toward Nature’s more sacred approaches. Yet the same paragraph slows publication: hostile reception, the hazards of reputation and attachment to entrenched opinions make communication dangerous. The author is defending not only what he thinks but his decision to make it public.
The appeal concerning Plato and Aristotle in To the Readers · Passage 4 is carefully double. Their names and authority should be set aside as grounds of prejudgment; their intellectual greatness should not be diminished. They nurtured philosophy in its infancy, but infancy could not possess a mature and exhaustive account of Nature. To the Readers · Passage 5 extends this developmental image: later generations can improve discoveries, and age can discredit an error as well as establish it. The decisive contrast is advancing boundary stones rather than abolishing boundaries. The closing invitation, To the Readers · Passage 6, even permits the work’s value to consist in provoking something better.
Canon 17 transfers this restraint into the canons themselves. About the earliest principle, only Nature’s author knows whether the many theological and philosophical accounts are true. A probable account of obscure things deserves indulgence. Canon 39 similarly says that Genesis seems to describe an order, and canon 72 offers the flood explanation as conjecture. Those qualifications belong to the argument and must survive a summary.
Near the end, canon 244 prevents a simple story of limitless intellectual progress. There the author treats humanity’s obscured understanding as part of the punishment for sin and says Scripture permits more wonder than knowledge concerning other worlds. This is his theological account of intellectual limits, not a modern editorial explanation. Together the preface and conclusion make inquiry both ambitious and bounded: inherited authority is revisable, but the human mind is not made an unrestricted measure of divine Nature.
Places to read
- Historical title (1653, unnumbered title)LatinThe historical title presents a handbook of restored natural philosophy and ends with the Christian motto of hope in the Lamb.
- Title-page maxim (1653, unnumbered title)LatinThe title-device maxim expresses reciprocal restraint toward others.
- To the Readers · Passage 1 (1653, pp. 3, 4)LatinRetirement becomes service to the universe’s commonwealth; Nature’s light replaces worldly splendour.
- To the Readers · Passage 2 (1653, pp. 4, 5)LatinWonder is both a spur to knowledge and evidence of ignorance.
- To the Readers · Passage 3 (1653, pp. 5, 6)LatinFirst principles become the focus of revision; love of knowledge meets the risks of publication.
- To the Readers · Passage 4 (1653, pp. 6, 7)LatinHonour for Plato and Aristotle is distinguished from submission to their names.
- To the Readers · Passage 5 (1653, p. 7)LatinThe author asks whether philosophy’s boundaries have been advanced rather than removed.
- To the Readers · Passage 6 (1653, pp. 7, 8)LatinThe gift may prove useful by provoking readers toward something better.
- Canon 17 (1653, p. 11)LatinOnly Nature’s author knows the earliest principle with certainty; probability is defended.
- Canon 39 (1653, pp. 27, 28)LatinGenesis is said, tentatively, to describe creation’s order rather than its execution.
- Canon 72 (1653, p. 52)LatinThe proposed origin of the deluge is expressly conjectural.
- Canon 244 (1653, pp. 177, 178)LatinThe closing theological account links human ignorance with the fall and limits what Scripture discloses.
Translation in this edition
The “light of natural philosophy” in the address translates LVCIS PHYSICÆ, not a reference to the modern discipline of physics alone. The work’s vocabulary brings illumination and inquiry close together without making every “light” an optical claim. In To the Readers · Passage 4, the edition’s “No evil eye!” renders the printed Præfiscini as an apotropaic expression within the author’s warning about illustrious names. In canon 17, “what is more probable” preserves a comparative qualification; it does not turn conjecture into an established historical or physical fact.
Wonder — admiratio
admiratio — A response that both discloses ignorance and urges the mind toward knowledge. (To the Readers · Passage 2; 1653, pp. 4, 5.)
Read: To the Readers · Passage 2 · Latin.
Spur — calcar
calcar — The goad image makes wonder an incentive, not itself an explanation. (To the Readers · Passage 2; 1653, pp. 4, 5.)
Read: To the Readers · Passage 2 · Latin.
Anvil — incudem
incudem — The testing place to which received philosophical decrees are brought back. (To the Readers · Passage 2; 1653, pp. 4, 5.)
Read: To the Readers · Passage 2 · Latin.
Love of knowledge — amorem scientiæ
amorem scientiæ — The motive that carries inquiry beyond its initial astonishment. (To the Readers · Passage 3; 1653, pp. 5, 6.)
Read: To the Readers · Passage 3 · Latin.
Authority — authoritatem
authoritatem — The prestige readers must suspend when judging an argument, not the achievement they must deny. (To the Readers · Passage 4; 1653, pp. 6, 7.)
Read: To the Readers · Passage 4 · Latin.
Trust — fidem
fidem — The reader’s assent, which great names have bound to themselves and which should remain freely judged. (To the Readers · Passage 4; 1653, pp. 6, 7.)
Read: To the Readers · Passage 4 · Latin.
Boundary stones — terminos
terminos — The figure for philosophy’s limits, claimed to be advanced rather than sacrilegiously abolished. (To the Readers · Passage 5; 1653, p. 7.)
Read: To the Readers · Passage 5 · Latin.
More probable — verisimilius
verisimilius — The allowable epistemic standard for an obscure beginning whose certainty belongs to God. (Canon 17; 1653, p. 11.)
Conjecture — coniicere
coniicere — The verb explicitly marks the flood explanation as an inference rather than a witnessed event. (Canon 72; 1653, p. 52.)
Light of natural philosophy — LVCIS PHYSICÆ
LVCIS PHYSICÆ — The address’s name for the illumination sought by students of Nature. (To the Readers · Passage 1; 1653, pp. 3, 4.)
Read: To the Readers · Passage 1 · Latin.
Handbook — ENCHIRIDION
ENCHIRIDION — The historical title calls the work a handbook or manual; the edition’s reading title “Summary” belongs to its English title tradition. (Historical title; 1653, unnumbered title.)
Read: Historical title · Latin.
Restoration — RESTITVTÆ
RESTITVTÆ — The title’s claim that natural philosophy has been restored is developed in the preface as correction and advancement, not simple rejection of the ancients. (Historical title; 1653, unnumbered title.)
Read: Historical title · Latin.
Lamb — AGNO
AGNO — The title motto places hope in the Lamb, making the Christian profession part of the historical framing before the natural-philosophical canons begin. (Historical title; 1653, unnumbered title.)
Read: Historical title · Latin.
Reciprocity — ALTERI NE FECERIS
ALTERI NE FECERIS — The title device forbids doing to another what one would not wish done to oneself; it is a framing maxim, not one of the numbered physical canons. (Title-page maxim; 1653, unnumbered title.)
Read: Title-page maxim · Latin.
No evil eye — Præfiscini
Præfiscini — The formula is inserted as protection against the spell of illustrious philosophical names, preserving admiration while resisting prejudgment. (To the Readers · Passage 4; 1653, pp. 6, 7.)
Read: To the Readers · Passage 4 · Latin.