Skip to content

Accounts Quote by Karl Popper

“Science is not a system of certain, or -established, statements; nor is it a system which steadily advances towards a state of finality... And our guesses are guided by the unscientific, the metaphysical (though biologically explicable) faith in laws, in regularities which we can uncover-discover…” quote by Karl Popper
Download Open image
“Science is not a system of certain, or -established, statements; nor is it a system which steadily advances towards a state of finality... And our guesses are guided by the unscientific, the metaphysical (though biologically explicable) faith in laws, in regularities which we can uncover-discover. Like Bacon, we might describe our own contemporary science-'the method of reasoning which men now ordinarily apply to nature'-as consisting of 'anticipations, rash and premature' and as 'prejudices'.”

Karl Popper

About This Quote

Science progresses through conjecture and refutation, not through absolute certainty; its methods are provisional and shaped by underlying metaphysical assumptions.

In simple terms: Science is provisional and guided by assumptions.

Key Takeaway

Science is a tentative, self‑correcting process.

Themes

Epistemology Methodology Philosophy of Science Uncertainty Metaphysics

Mood

Reflective Critical

Type

Philosophical Analytical

When to use this quote

  • Designing research programs
  • Evaluating scientific claims
  • Teaching philosophy of science

Key Concepts

Conjecture Refutation Fallibilism Heuristics

Practical Applications

  • Developing robust experimental designs
  • Encouraging critical peer review

Questions to Reflect On

  • How does acknowledging uncertainty improve scientific practice?
  • What role do underlying metaphysical beliefs play in shaping research agendas?
2.9 out of 5 (6 ratings)

More by Karl Popper

Explore all 181 Karl Popper quotes

More Accounts quotes

Browse all 2,677 Accounts quotes