Full Idea
The supreme maxim in scientific philosophising is this: Wherever possible, logical constructions are to be substituted for inferred entities.
Gist of Idea
Where possible, logical constructions are to be substituted for inferred entities
Source
Bertrand Russell (The Relation of Sense-Data to Physics [1914], §VI)
Book Reference
Russell,Bertrand: 'Mysticism and Logic' [Unwin 1989], p.149
A Reaction
This seems to represent Russell's first move (in 1914) into what looks like phenomenalism. One might ask what is the difference between 'logical constructions' and 'inferred entities'. The latter appear to have unity, so I prefer them.