On quantum theory I use up more brain grease (rough translation of German idiom) than on relativity.

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Probable attribution

A source trail connects this quotation to Albert Einstein and Quoted by Otto Stern, a colleague of Einstein in Zurich from 1912 to 1914, in a 1962 oral history interview with Thomas S. Kuhn, but the exact English wording has not been confirmed in a primary text. The attribution is therefore probable rather than definitive.

Likely origin: Quoted by Otto Stern, a colleague of Einstein in Zurich from 1912 to 1914, in a 1962 oral history interview with Thomas S. Kuhn

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This page records the wording "On quantum theory I use up more brain grease (rough…," which centers on quantum, theory, brain. A concrete trail points toward Einstein, but the exact English form remains unconfirmed; the page therefore labels it as attributed to him while preserving its science and wisdom context.

When to use it

  • Use "On quantum theory I use up more brain grease (rough…" in a science discussion, then ask which concrete claim the wording makes.
  • Compare its treatment of quantum with theory in a lesson, essay, or editorial note before drawing a conclusion.
  • Before sharing it as Einstein's exact words, display the attribution caveat and follow the evidence link recorded on the page.