I never failed in mathematics. Before I was fifteen I had mastered differential and integral calculus.

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Source: Response to being shown a "Ripley's Believe It or Not!" column with the headline "Greatest Living Mathematician Failed in Mathematics" (1935). Quoted in Einstein: His Life and Universe by Walter Isaacson (2007), p. 16

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This source-reviewed Einstein quotation develops a complete idea around never, failed, mathematics. The wording "I never failed in mathematics. Before I was fifteen I…" is tied to Response to being shown a "Ripley's Believe It or Not!" column with the headline "Greates…, so readers can connect its themes of science and wisdom to a documented context rather than a detached slogan.

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  • Use "I never failed in mathematics. Before I was fifteen I…" in a science discussion, then ask which concrete claim the wording makes.
  • Compare its treatment of never with failed in a lesson, essay, or editorial note before drawing a conclusion.
  • When publishing or narrating it, retain the documented source trail to Response to being shown a "Ripley's Believe It or Not!" column with the headline "Greates… so the quotation stays connected to its original context.