Werner Heisenberg quoteWerner Heisenberg [1901-1976]
German Physicist 
Quote rank: 110
| It is generally believed that our science is empirical and that we draw our concepts and our mathematical constructs from the empirical data. If this were the whole truth, we should, when entering into a new field, introduce only such quantities as can directly be observed, and formulate natural laws only by means of these quantities. |
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