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As soon as the circumstances of an experiment are well…

“As soon as the circumstances of an experiment are well known, we stop gathering statistics. ... The effect will occur always without exception, because the cause of the phenomena is accurately defined. Only when a phenomenon includes conditions as yet undefined,Only when a phenomenon includes…” quote by Claude Bernard
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“As soon as the circumstances of an experiment are well known, we stop gathering statistics. ... The effect will occur always without exception, because the cause of the phenomena is accurately defined. Only when a phenomenon includes conditions as yet undefined,Only when a phenomenon includes conditions as yet undefined, can we compile statistics. ... we must learn therefore that we compile statistics only when we cannot possibly help it; for in my opinion, statistics can never yield scientific truth.”

Claude Bernard

About This Quote

This interpretation was drafted with AI assistance. It is one reading of the quote, not the author's own explanation.

When all variables are controlled, data collection becomes unnecessary; statistics serve only when unknown factors exist, and they cannot alone reveal truth.

In simple terms: Statistics are useful only for unknowns, not for fully understood experiments.

Key Takeaway

Use statistics only when uncertainty remains.

Themes

science methodology uncertainty

Mood

analytical skeptical

Type

epistemic critical

When to use this quote

  • clinical trials
  • laboratory research
  • policy analysis
  • market research
  • environmental monitoring

Key Concepts

experimental design philosophy of science epistemology

Questions to Reflect On

  • When should you rely on statistics versus direct measurement?
  • What limits do statistics have in fully controlled experiments?
A Different Perspective

Statistics cannot replace direct observation when conditions are fully known.

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