Sources

What this site trusts, in order: Einstein's own papers, the archives that hold them, the institutions that document his life, and the scholarship that interprets them.

Primary sources

• The Collected Papers of Albert Einstein (CPAE) — Princeton University Press, edited by the Einstein Papers Project (Caltech). The scholarly edition of his writings, correspondence, and documents; the backbone of every factual claim on this site.
• Einstein Archives Online — the Hebrew University of Jerusalem, which holds Einstein’s personal papers (bequeathed to the university in his will). Digital catalog of manuscripts, letters, and photographs.
• Annalen der Physik, vol. 17 (1905) — the journal volume containing the four annus mirabilis papers; Sitzungsberichte der Preussischen Akademie der Wissenschaften (1915–1917) — the general relativity and cosmology papers.
• NobelPrize.org — the official Nobel site: the 1921 prize facts page, the award citation wording, and Einstein’s Nobel lecture materials.
• Institute for Advanced Study, Princeton — institutional records of Einstein’s 1933–1955 appointment.

Scholarship consulted

• Abraham Pais, Subtle Is the Lord: The Science and the Life of Albert Einstein (Oxford University Press, 1982) — the standard scientific biography, by a physicist who knew him.
• Jürgen Neffe, Einstein: A Biography (Farrar, Straus and Giroux, 2007; German original 2005).
• Walter Isaacson, Einstein: His Life and Universe (Simon & Schuster, 2007) — used for narrative framing; factual claims checked against CPAE.
• R. W. Clark, Einstein: The Life and Times (1971) — for the Fine Hall “Subtle is the Lord” documentation.
• George Gamow, My World Line (1970) — cited only as the source of the report of the “biggest blunder” remark (see Reception), not as evidence Einstein said it.

Tertiary and reference

• Wikipedia’s Albert Einstein article and related physics articles were used as finding aids only; no fact on this site rests solely on a tertiary source.

Image provenance

See the image captions for credits and context. Illustrated character art is a dramatization.

What is not here

• No quotation appears without a primary source (see Sayings for the misattributed list).
• No date is inferred: receipt dates come from journals, civil records from archives, and where the record is thin the page says so.
• Popular anecdotes that cannot be sourced are tested in Reception, not repeated as fact.

Source notes

• This page is itself a source statement; its claims about what the site trusts are verifiable in the build (every editorial page ends with Source notes, and methodology.md states the rules).
• The Einstein Archives Online is maintained by the Hebrew University of Jerusalem; the Einstein Papers Project is based at Caltech; both are cited as institutions, not as endorsers of this site.
• Image rights were verified per-file on Wikimedia Commons on 2026-09-26; the per-file notes are in the image credits on this page.