Substance persists beyond accident. Unamuno, Life 5.3

We observe that our bodies have integrity extending beyond momentary expressions of material coherence. This observation becomes grounds for believing in our immortality (despite that belief being without compelling rational foundation). It is also grounds for noticing that the world has other things that persist and exist beyond any moment limited by our faculties for observation.


William James, en la tercera de las conferencias que dedicó al pragmatismo en el Lowell Institute de Boston, en Diciembre de 1906 y Enero de 1907 (Pragmatism, a new name for some old ways of thinking, publicado en 1907), y que es lo más débil de toda la obra del insigne pensador norteamericano —algo excesivamente débil—, dice así: «El escolasticismo ha tomado la noción de sustancia del sentido común, haciéndola técnica y articulada. Pocas cosas parecerían tener menos consecuencias pragmáticas para nosotros que las sustancias, privados como estamos de todo contacto con ellas. Pero hay un caso en que el escolasticismo ha probado la importancia de la sustancia-idea tratándola pragmáticamente. Me refiero a ciertas disputas concernientes al misterio de la Eucaristía. La sustancia aparecería aquí con un gran valor pragmático. Desde que los accidentes de la hostia no cambian en la consagración y se ha convertido ella, sin embargo, en el cuerpo de Cristo, el cambio no puede ser más que de la sustancia. La sustancia del pan tiene que haberse retirado, sustituyéndola milagrosamente la divina sustancia sin alterarse las propiedades sensibles inmediatas. Pero aun cuando éstas no se alteran, ha tenido lugar una tremenda diferencia; no menos sino el que nosotros, los que recibimos el sacramento, nos alimentamos ahora de la sustancia misma de la divinidad. La noción de sustancia irrumpe, pues, en la vida con terrible efecto si admitís que las sustancias pueden separarse de sus accidentes y cambiar estos últimos. Y es esta la única aplicación pragmática de la idea de sustancia de que tenga yo conocimiento, y es obvio que sólo puede ser tratada en serio por los que creen en la presencia real por fundamentos independientes.»

Ahora bien; dejando de lado la cuestión de si en buena teología, y no digo en buena razón, porque todo esto cae fuera de ella, se puede confundir la sustancia del cuerpo —del cuerpo, no del alma— de Cristo con la sustancia misma de la divinidad, es decir, con Dios mismo, parece imposible que un tan ardiente anhelador de la inmortalidad del alma, un hombre como W. James, cuya filosofía toda no tiende sino a establecer racionalmente esa creencia, no hubiera echado de ver que la aplicación pragmática del concepto de sustancia a la doctrina de la transustanciación eucarística no es sino una consecuencia de su aplicación anterior a la doctrina de la inmortalidad del alma. Como en el anterior capítulo expuse, el sacramento de la eucaristía no es sino el reflejo de la creencia en la inmortalidad; es, para el creyente, la prueba experimental mística de que es inmortal el alma y gozará eternamente de Dios. Y el concepto de sustancia nació, ante todo y sobre todo, del concepto de la sustancialidad del alma, y se afirmó éste para apoyar la fe en su persistencia después de separada del cuerpo. Tal es su primera aplicación pragmática y con ella su origen. Y luego hemos trasladado ese concepto a las cosas de fuera. Por sentirme sustancia, es decir, permanente en medio de mis cambios, es por lo que atribuyo sustancialidad a los agentes que fuera de mí, en medio de sus cambios, permanecen. Del mismo modo que el concepto de fuerza, en cuanto distinto del movimiento, nace de mi sensación de esfuerzo personal al poner en movimiento algo.


In the third conference dedicated to pragmatism at the Lowell Institute of Boston in December of 1906 and January of 1907 (published as Pragmatism in 1907), William James produced the weakest thought in all his career, which despite its distinction never achieved anything strong (). Quoth he: "Scholastic philosophy took the common-sense notion of substance and made it technical, articulate. Few things would appear to have less consequence for us pragmatists than substances, seeing as we lack all contact with them. But there is one instance in which scholasticism has shown the importance of substance qua idea by treating it pragmatically. I am referring to certain arguments about the mystery of the Eucharist. Substance here would appear to have great pragmatic value. As the accidents that befall the host during its consecration affect no material change in it, and yet it somehow becomes the body of Christ, the only thing that can have changed is its substance. The substance of ordinary bread must have withdrawn, being replaced in miraculous fashion by divine substance that offers no immediately sensible indication of this change. But though its manifestation remains the same, nevertheless we who take the sacrament observe this great difference, that in partaking of it we feast upon the very substance of divinity. Here we see, then, that the notion of substance can invade ordinary life with powerful effect, if you grant that substances can be separated from material accidents and can change them. This is the only pragmatic application of the notion of substance of which I am aware, and it is obvious that it can only be taken seriously by those whose belief in reality rests on a foundation that excludes material accidents."

Well then! Leaving reason aside, as these matters have nothing to do with her, I will also pass over the question whether good theology will allow us to identify the substance of Christ's body—not his soul, mind you!—with the very substance of divinity, i.e. with God himself. Setting all this aside, I find it impossible to believe that such an ardent admirer of the soul's immortality as James, whose entire philosophy tends to provide a rational footing for our belief in it, would have failed to notice that the pragmatic application of substance to the doctrine of transubstantiation in the Eucharist is just a consequence of its prior application to the doctrine of the immortality of the soul. As I explained in the chapter before this one, the sacrament of the Eucharist is simply a symbol or signal of belief in immortality. For the believer, it constitutes mystical proof of personal immortality, illustrating that the soul is immortal and that it shall rejoice forever in God. The concept of substance was born, originally and ultimately, from the concept of the soul's substantiality, and the affirmation of substance serves to sustain faith in the soul's persistence after it has been separated from the body. This is the first pragmatic application of this concept, and also its origin. Other applications to different things come later. To clarify: it is only after I have felt myself to be substantial, i.e. permanent in the midst of my alterations and evolutions, that I attribute substantiality to agents outside myself, agents who like me remain permanent in the midst of their evolutions. In the same way my concept of force, as distinct from movement, arises from noticing the personal exertion I make to put something in motion.


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() William James (1842-1910 CE) was born into a wealthy American family and became one of the foremost philosophers of his era. His grandfather emigrated from Ireland and made a fortune doing business in New York, where William's father Henry studied to enter the ministry, a career that led him ultimately to become a follower of Emmanuel Swedenborg. William studied medicine at Harvard, but never practiced, preferring to teach and write. His subjects included physiology, psychology, and philosophy, which he sought to reconcile in a collection of doctrines known as pragmatism. This approach, which he shared with others like John Dewey and Charles Sanders Pierce, conceived thought and concept as the instruments of action.