Full Idea
Such words as or, not, all, some, plainly involve logical notions; since we use these intelligently, we must be acquainted with the logical objects involved. But their isolation is difficult, and I do not know what the logical objects really are.
Gist of Idea
We use logical notions, so they must be objects - but I don't know what they really are
Source
Bertrand Russell (The Theory of Knowledge [1913], 1.IX)
Book Reference
Russell,Bertrand: 'The Theory of Knowledge', ed/tr. Eames,ER /Blackwell,K [Routledge 1992], p.99
A Reaction
See Idea 23476, from the previous page. Russell is struggling. Wittgenstein was telling him that the constants are rules (shown in truth tables), rather than objects.
Related Idea
Idea 23476 Logical constants seem to be entities in propositions, but are actually pure form [Russell]