There are a number of things that science can’t deal with. All questions of values. for example. Science won’t tell you what is good and what is bad — what is good or bad as an end, not just as a means.

Bertrand Russell (1872-1970) English mathematician and philosopher

Interview by Woodrow Wyatt, BBC TV (1959)
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Collected in Bertrand Russell's BBC Interviews (1959) [UK] and Bertrand Russell Speaks His Mind (1960) [US]. Reprinted (abridged) in The Humanist (1982-11/12), and in Russell Society News, #37 (1983-02).