Full Idea
In addition to the private spaces, ..there is the 'space of perspectives', since each private world may be regarded as the appearance which the universe presents from a certain point of view.
Gist of Idea
There is 'private space', and there is also the 'space of perspectives'
Source
Bertrand Russell (The Relation of Sense-Data to Physics [1914], §VII)
Book Reference
Russell,Bertrand: 'Mysticism and Logic' [Unwin 1989], p.153
A Reaction
This replaces his concept of 'public space', which he introduced in 1912. Russell gradually dropped this, but I like the idea that we somehow directly perceive space in two ways simultaneously (which led him to say that space is six-dimensional).