“Raymond Aron ascribes to Weber the view that ‘each man’s conscience is irrefutable.’ … while [Weber] holds that an agent may be more or less rational in acting consistently with his values, the choice of any one particular evaluative stance or commitment can be no more rational than any other. All faiths and all evaluations are equally non-rational…”
Source: After Virtue (1981), p. 26.
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Alasdair MacIntyre 12
Scottish philosopher 1929Related quotes

attain targets while satisfying constraints
Simon (1997, p. 17); As cited in: Gustavo Barros (2010, p. 460).
1980s and later
Source: Irrational Man: A Study in Existential Philosophy (1958), Chapter Five, Christian sources, p. 82

“It is a more rational belief that man may become a brute than that a brute may become a man;”
The facts and fancies of Mr. Darwin (1862)
Context: It is a more rational belief that man may become a brute than that a brute may become a man; and it is an easier faith that plants and animals may dwindle down into an elemental atom, than that this atom should embrace in its organization, and evolve, all the noble forms of vegetable, animal, and intellectual life.
Source: Social Costs of Business Enterprise, 1963, p. 12. Cited in: M. Rangone & S. Solari (2012) "Southern European capitalism and the social costs of business enterprise". in: Studi e Note di Economia, Anno XVII, n. 1-2012, pp. 3-28
“As cause of any particular evaluation of”
Der pädophile Impuls - Wie lernt ein junger Mensch Sexualität? (The Paedophile Impulse: Toward the Development of an Aetiology of Child-Adult Sexual Contacts from an Ethological and Ethnological Viewpoint, transl. Hubert Kennedy) (1985/88).
Der pädophile Impuls (1985/88)
Context: As cause of any particular evaluation of [any particular] sexuality [... ], the following may be agreed upon in general: The respective racial traditions with their myths, their genesis and fertility legends, and further the cultural characteristics of the groups in question, treated as geographically spread out as viewed in connection with race, language (language families), lineal descent (patriarchal or matriarchal), as well as their economic and ecological particularities. Religion, economic relations, natural resources along with the ecological environment all together (also their changes in the course of time!) prove themselves to be directly related to one another everywhere.

Source: The Anatomy of Human Destructiveness (1973), p. 483
Context: Optimism is an alienated form of faith, pessimism an alienated form of despair. If one truly responds to man and his future, ie, concernedly and "responsibly." one can respond only by faith or by despair. Rational faith as well as rational despair are based on the most thorough, critical knowledge of all the factors that are relevant for the survival of man.