“Justice is the constant and perpetual will to render to every man his due.”
Iustitia est constans et perpetua voluntas ius suum cuique tribuendi.
“Justice is a habit (habitus), whereby a man renders to each one his due with constant and perpetual will.”
The Four Cardinal Virtues: Prudence, Justice, Fortitude, Temperance (1965)
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Josef Pieper 45
German philosopher 1904–1997Related quotes

Source: The Moral Judgment of the Child (1932), Ch. 1 : The Rules of the Game, § 8 : Conclusions : Motor Rules and the Two Kinds of Respect
Context: The motor rule. In its beginnings the motor rule merges into habit. During the first few months of an infant's life, its manner of taking the breast, of laying its head on the pillow, etc., becomes crystallized into imperative habits. This is why education must begin in the cradle. To accustom the infant to get out of its own difficulties or to calm it by rocking it may be to lay the foundations of a good or of a bad disposition.
But not every habit will give rise to the knowledge of a rule. The habit must first be frustrated, and the ensuing conflict must lead to an active search for the habitual. Above all, the particular succession must be perceived as regular, i. e. there must be judgment or consciousness of regularity (Regelbewusstseiri). The motor rule is therefore the result of a feeling of repetition which arises out of the ritualization of schemas of motor adaptation. <!-- The primitive rules of the game of marbles (throwing the marbles, heaping them, burying them, etc.) which we observed towards the age of 2-3 are nothing else. The behavior in question starts from a desire for a form of exercise which takes account of the particular object that is being handled. The child begins by incorporating the marbles into one or other of the schemas of assimilation already known to him, such as making a nest, hiding under earth, etc. Then he adapts these schemas to the nature of the object by preventing the marbles from rolling away by putting them in a hole, by throwing them, etc.

Source: Legal foundations of capitalism. 1924, p. 351-352

“The very first essential for success is a perpetually constant and regular employment of violence.”
“Justice is a constant uprightness in words and in deeds.”
Four Discoveries of Praise to God, eds. C. Matthew McMahon and Therese B. McMahon (Puritan Publications, 2012), Ch. 2, p. 28

Source: Basic Verities, Prose and Poetry (1943), p. 51

An Apology for Idlers.
Virginibus Puerisque and Other Papers (1881)

Section I, p. 6
Natural Law; or The Science of Justice (1882), Chapter I. The Science of Justice.