“The arrow points only in the application that a living being makes of it.”
§ 454
Philosophical Investigations (1953)
Context: "Everything is already there in...." How does it come about that [an] arrow points? Doesn't it seem to carry in it something besides itself? — "No, not the dead line on paper; only the psychical thing, the meaning, can do that." — That is both true and false. The arrow points only in the application that a living being makes of it.
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Ludwig Wittgenstein 228
Austrian-British philosopher 1889–1951Related quotes

“But if the arrow is straight
And the point is slick
It can pierce through dust no matter how thick”
Song lyrics, The Times They Are A-Changin' (1964), Restless Farewell

Richard Hamming, Methods of Mathematics Applied to Calculus, Probability, and Statistics (1985).

Source: The Moral Judgment of the Child (1932), Ch. 1 : The Rules of the Game
Context: From the point of view of the practice or application of rules four successive stages can be distinguished.
A first stage of a purely motor and individual character, during which the child handles the marbles at the dictation of his desires and motor habits. This leads to the formation of more or less ritualized schemas, but since play is still purely individual, one can only talk of motor rules and not of truly collective rules.
The second may be called egocentric for the following reasons. This stage begins at the moment when the child receives from outside the example of codified rules, that is to say, some time between the ages of two and five. But though the child imitates this example, he continues to play either by himself without bothering to find play-fellows, or with others, but without trying to win, and therefore without attempting to unify the different ways of playing. In other words, children of this stage, even when they are playing together, play each one "on his own " (everyone can win at once) and without regard for any codification of rules. This dual character, combining imitation of others with a purely individual use of the examples received, we have designated by the term Egocentrism.
A third stage appears between 7 and 8, which we shall call the stage of incipient cooperation. Each player now tries to win, and all, therefore, begin to concern themselves with the question of mutual control and of unification of the rules. But while a certain agreement may be reached in the course of one game, ideas about the rules in general are still rather vague. In other words, children of 7-8, who belong to the same class at school and are therefore constantly playing with each other, give, when they are questioned separately, disparate and often entirely contradictory accounts of the rules observed in playing marbles.
Finally, between the years of 11 and 12, appears a fourth stage, which is that of the codification of rules. Not only is every detail of procedure in the game fixed, but the actual code of rules to be observed is known to the whole society. There is remarkable concordance in the information given by children of 10-12 belonging to the same class at school, when they are questioned on the rules of the game and their possible variations.

Dr Gayathri Sreekanth, in her well researched biography of the actor titled, The Name is Rajinikanth. “
Decoding Rajinikanth

Introduction.
Magick Book IV : Liber ABA, Part III : Magick in Theory and Practice (1929)
Context: I must make
MAGICK
the essential factor in the life of
ALL.
In presenting this book to the world, I must then explain and justify my position by formulating a definition of
MAGICK
and setting forth its main principles in such a way that
ALL
may understand instantly that their souls, their lives, in every relation with every other human being and every circumstance, depend upon
MAGICK
and the right comprehension and right application thereof.