Full Idea
It seems to me evident that, as in the case of impure water, analysis gives new knowledge without destroying any of the previously existing knowledge.
Gist of Idea
Analysis gives new knowledge, without destroying what we already have
Source
Bertrand Russell (My Philosophical Development [1959], Ch.11)
Book Reference
Russell,Bertrand: 'My Philosophical Development' [Routledge 1993], p.98
A Reaction
I agree. On the whole, opponents of analysis are sentimental mystics who are reluctant to think carefully about life. I'm not sure what careful and concentrated thought is capable of, apart from analysis.