Full Idea
Every explanation of a rule could conceivably be misunderstood.
Gist of Idea
No rule can be fully explained
Source
Saul A. Kripke (Wittgenstein on Rules and Private Language [1982], 3)
Book Reference
Kripke,Saul: 'Wittgenstein on Rules and Private Language' [Blackwell 1993], p.82
A Reaction
This is Kripke's summary of what he takes to be Wittgenstein's scepticism about rules.