Author

Friedrich Heinrich Jacobi(1743–1819)

Friedrich Heinrich Jacobi is documented in Fuller’s letters and journals (1836). One work is named, most often in Letter to James F. Clarke, and the most intensive engagement recorded is “analyzed”.

Engagement
AnalyzedReadMentioned
Present in
Letters · Journals
Documented
1836

Additional passages preserved in the Memoirs (1852)

Totals count documented engagements, once at the earliest witness. How we count →

Reprints, Memoirs passages, and repeat notes within a single manuscript are shown but never counted twice. Evidence for this author is selective, not exhaustive. Methodology →

Confirmed reading

Passages where the evidence goes beyond allusion to indicate that Fuller had Friedrich Heinrich Jacobi’s work in hand — an explicit statement of reading, sustained excerpting or translation, or a specific reading episode recorded by those who knew her.

  • Dated
  • 1830Work not namedPossiblePosthumous testimony

    “she addresses herself to the study of Fichte and Jacobi, of Brown and Stewart”

    Mem-4 Margaret Fuller by Julia Ward Howe · during the 1829-1833 period

    Same dated period narration naming Jacobi specifically.

  • 1836Über die Lehre des Spinoza in Briefen an den herrn Moses MendelssohnAttested

    “Jacobi I could understand in details, but not in system.”

    Letters of Margaret Fuller ed. Hudspeth · [ca. 14 February 1836]

    MERGED 2026-10-11: absorbed duplicate witness(es) re190 (Mem-2 Memoirs of Margaret Fuller Ossoli (sections), Mem-2-02 l.5223-5227; tier A; same passage) — counted once here. Parallel clause in the same sentence discussing her direct reading of Jacobi alongside Fichte.

In Fuller’s words

“Jacobi I could understand in details, but not in system. It seemed to me that his mind must have been moulded by some other mind, with which I ought to be acquainted, in order to know him well,—perhaps Spinoza's.”
Über die Lehre des Spinoza in Briefen an den Herrn Moses Mendelssohn [On the Doctrine of Spinoza in Letters to Moses Mendelssohn] · Letter to James F. Clarke · 1836

When Fuller engaged with Friedrich Heinrich Jacobi

I. Childhood
II. Adolescence
III. Self-Directed
IV. Transcendentalist2records
V. New York
VI. Europe
✦. Memoirs (1852)1record
1810
1820
1832
1836
1844
1846
1850

This page brings together documented engagements currently identified within the Fuller Reading Worlds catalog.

Jacobi in Fuller’s reading world

Documentary evidence

Selected passages from Fuller’s own writings, in chronological order.

1836—

Letter to James F. Clarke

p244
analyzed · read
“Jacobi I could understand in details, but not in system.”

Fuller, Margaret. The Letters of Margaret Fuller. Edited by Robert N. Hudspeth. Vol. I. Ithaca: Cornell University Press, 1983.

Inferred Fuller names Jacobi explicitly and describes detailed reading engagement, noting that she "could understand in details, but not in system." Hudspeth identified the work as Über die Lehre des Spinoza in Briefen an den Herrn Moses Mendelssohn (Breslau, 1785), Jacobi's most famous work on Spinoza's thought.

1836—

Journal December 1836

p7–8
“Expressed much interest about Jacobi. Seemed to know little of Jacobi except from Me de Stael.”

Fuller, Margaret. "Journal December 1836." Houghton Library, Harvard University; MS Am 1086; Box 3.

Preserved in the Memoirs (1852)

Passages surviving only in the posthumous Memoirs of Margaret Fuller Ossoli, compiled by Emerson, Channing, and Clarke.

1852—

Memoirs of Margaret Fuller Ossoli

p216
analyzed · read
“particularly what I was myself troubled about, at Cambridge,—Jacobi's letters to Fichte.”

Emerson, Ralph Waldo, William Henry Channing, and James Freeman Clarke, eds. Memoirs of Margaret Fuller Ossoli. 2 vols. Boston: Phillips, Sampson and Company, 1852.

Inferred In her reflections, Margaret Fuller references Friedrich Heinrich Jacobi's "Letters to Fichte," a foundational text in the debates of German idealism. She notes its role in her own intellectual preoccupations during her time in Cambridge, having encountered this work within the Mackintosh Memoirs.