Science works by experiments. It watches how things behave.
 C. S. Lewis, Mere Christianity (1952). copy citation

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Author C. S. Lewis
Source Mere Christianity
Topic science experiment
Date 1952
Language English
Reference
Note Adapted from a series of BBC radio talks made between 1942 and 1944
Weblink https://www.dacc.edu/assets/pdfs/PCM/merechristianitylewis.pdf

Context

“Please do not think that one of these views was held a long time ago and that the other has gradually taken its place. Wherever there have been thinking men both views turn up. And note this too. You cannot find out which view is the right one by science in the ordinary sense. Science works by experiments. It watches how things behave. Every scientific statement in the long run, however complicated it looks, really means something like, ‘I pointed the telescope to such and such a part of the sky at 2.20 a.m. on January 15th and saw so-and-so,’ or, ‘I put some of this stuff in a pot and heated it to such-and-such a temperature and it did so-and-so.’ Do not think I am saying anything against science:” source