Skip to content

Certain Quote by Karl Popper

“The old scientific ideal of episteme - of absolutely certain, demonstrable knowledge - has proved to be an idol. The demand for scientific objectivity makes it inevitable that every scientific statement must remain tentative for ever.” quote by Karl Popper
Download Open image
“The old scientific ideal of episteme - of absolutely certain, demonstrable knowledge - has proved to be an idol. The demand for scientific objectivity makes it inevitable that every scientific statement must remain tentative for ever.”

Karl Popper

About This Quote

Source Book: Conjectures and Refutations, 1963

Scientific knowledge is provisional; claims of absolute certainty become idols that hinder progress, so all statements must stay open to revision.

In simple terms: Science is always tentative, never final.

Key Takeaway

Embrace uncertainty and keep questioning.

Themes

science philosophy epistemology

Mood

critical analytical

Type

theoretical philosophical

When to use this quote

  • research design
  • policy making
  • education curricula
  • public discourse

Key Concepts

tentativeness falsifiability

Questions to Reflect On

  • How do you balance confidence with humility?
  • What safeguards prevent endless revision?
A Different Perspective

Overemphasis on uncertainty can cause indecision.

3.9 out of 5 (5 ratings)

More by Karl Popper

Explore all 181 Karl Popper quotes

More Certain quotes

Browse all 13,546 Certain quotes