A Rule (n.) is not an external description of a procedure that has to be internalized in order to produce a particular behaviour. They have no meaning outside of their practical application any more than do the rails that compel a locomotive down the tracks.
A Rule (n.) can always be explained by a further rule, and yet a rule is not left half-explained just because no rule for its use was given.
A Rule (n.) is, roughly, what is applied repeatedly, in an indefinite number of instances; the same string can be a mere description in one game and a rule in another.
A Rule (n.) can fade from an instrument consulted at each step, to an association, to a shadow that drops out of practice entirely, to something used only in training.
A Rule (n.) can be neither tool of training nor of play but a natural law describing a tribe's behaviour, a record in its natural history.
A Rule (n.) is involved in writing 1, 4, 9, 16 only when the symbol of the rule forms part of the calculation, for that series accords with squaring and equally with any number of other rules.
A Rule (n.) does not, so far as it interests us, act at a distance: it interests us only so far as it is involved in the application, and the teaching drops out as a mere hypothetical history.
A Rule (n.) seems to have made all its steps already, as Frege thought the line between two points is there before we draw it.
A Rule (n.) can always be justified by another rule: however many rules you give me, I give one that justifies my use of yours.
The Rule (n.) of counting (n.) is not counting; the shortened procedure is no pale shadow of the longer one.
A Rule (n.) has a hardness easily confused with the hardness of a material.
A Rule (n.) used to describe tells you no more than you say: if you say and so on, you yourself know no more than and so on.
A Rule (n.) does no work, since whatever happens according to it is an interpretation of it.
A Rule (n.) is understood no further than you can explain it.
A Rule (n.) once grasped binds me only in judging what accords with it and what does not.
A Rule (n.) scratched by one chimpanzee and copied by another is no rule — unless there is teaching, imitation, reward, misfiring attempts.
A Rule (n.) has its forerunner in pleasure in simple regularities — tapping a rhythm, drawing or looking at a plain ornament.
A Rule (n.) guides us — we are inclined to use that metaphor.
A Rule (n.) held fast means nothing without an outward mark: falling through space I might hold something, but not hold it still.
A Rule (n.) stands detached, alone in its glory, though daily experience gives it its importance — like a king whose dignity must not be explained by his usefulness.