Niels Bohr — "The aim of science is to purify our notions, not to increase the number of facts…"
The aim of science is to purify our notions, not to increase the number of facts.
Get This Quote & Author's Image Illustrated On:
Click any product to generate a realistic preview. Up to 3 at a time.
* Initial load can take up to 90 seconds — revising the preview in another color is nearly instant.
Kitchen
Apparel
Other
More from Niels Bohr
"The problem is not to know what the world is, but what we can say about it."
"The role of consciousness in quantum mechanics is still a mystery."
"We must be clear that, when it comes to atoms, language can be used only as in poetry. The poet, too, is not nearly so concerned with describing facts as with creating images and establishing mental c…"
"When we speak of the electron, we are not speaking of something that really exists, but of something that we have imagined."
"We are here in a position to be able to understand that the human spirit cannot be completely satisfied by science alone."
Verification
Unverifiable
Found in 1 providers: grok
1 source checked
Understanding this quote
What it means
Science isn't about piling up more observations or data points. Its real job is refining how we think, sharpening the concepts we use to describe reality. Progress happens when we replace fuzzy or inconsistent ideas with clearer, more rigorous ones. Collecting endless facts without better frameworks leads nowhere; understanding deepens only when our mental tools themselves improve. Quality of thought beats quantity of information.
Relevance to Niels Bohr
Bohr spent his career reworking the conceptual foundations of physics rather than just cataloging phenomena. His atomic model replaced classical assumptions with quantized orbits, and his complementarity principle forced physicists to rethink what observation even means. He famously clashed with Einstein over interpretation, not data. For Bohr, the quantum revolution wasn't about new measurements but about purifying notions like causality, locality, and reality itself to fit strange new evidence.
The era
Bohr worked through the early-to-mid 20th century, when physics was in upheaval. Classical Newtonian concepts were collapsing under radioactivity, spectral lines, and relativity. At his Copenhagen institute during the 1920s-30s, the quantum revolution demanded not more experiments but entirely new ways of thinking about matter and measurement. World War II then weaponized physics via the atomic bomb, making conceptual clarity about science's purpose and ethics newly urgent for Bohr personally.
AI-generated insights based on extensive research and information for context. Factual errors? Email [email protected].