QuoteQuest“I proffer the following ideas with a substantial degree of trepidation; I know very well that many of them are speculative and can be proved or disproved on the anvil of experiment.”
Verification
AttributedRecorded by a reliable secondary source; exact wording may differ.
Imported from Wikiquote; not yet checked by QuoteQuest against the original source.
Source
- Title
- Wikiquote: Carl Sagan
- Type
- reference · Secondary source
- Held by
- Wikiquote
Context
Introduction (p. 5)
Cite this source
Sagan, Carl. (n.d.). Wikiquote: Carl Sagan. Wikiquote. https://en.wikiquote.org/wiki/Carl_Sagan
Check citations against your institution's style guide; some details may be missing.
Provenance: Wikiquote (CC BY-SA)