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Cases Quote by Thomas A. Edison

“I never once made a discovery ... I speak without exaggeration that I have constructed three thousand different theories in connection with the electric light ... Yet in only two cases did my experiments prove the truth of my theory.” quote by Thomas A. Edison
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“I never once made a discovery ... I speak without exaggeration that I have constructed three thousand different theories in connection with the electric light ... Yet in only two cases did my experiments prove the truth of my theory.”

Thomas A. Edison

About This Quote

Source Speech: Interview, 1920s, Thomas Edison

Edison reflects on the many hypotheses he tried, noting only a few succeeded, highlighting the trial‑and‑error nature of invention.

In simple terms: Many ideas fail; few succeed.

Key Takeaway

Embrace experimentation, learn from failures.

Themes

innovation perseverance scientific method

Mood

determined reflective

Type

inspirational philosophical

When to use this quote

  • research labs
  • product development
  • academic studies

Key Concepts

hypothesis testing failure analysis

Questions to Reflect On

  • What can you learn from your failed attempts?
  • How do you decide which ideas to pursue further?
A Different Perspective

Progress often requires many false starts before breakthroughs.

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