Rational limits. Unamuno, Life 5.25

Unamuno is wrapping up his assessment of reason. Within rational limits he finds no room for personal immortality, which thus becomes rationally impossible (as Christians recognized as early as Tertullian).


No sé por qué tanta gente se escandalizó o hizo que se escandalizaba cuando Brunetière volvió a proclamar la bancarrota de la ciencia. Porque la ciencia, en cuanto sustitutiva de la religión, y la razón en cuanto sustitutiva de la fe, han fracasado siempre. La ciencia podrá satisfacer, y de hecho satisface en una medida creciente, nuestras crecientes necesidades lógicas o mentales, nuestro anhelo de saber y conocer la verdad; pero la ciencia no satisface nuestras necesidades afectivas y volitivas, nuestra hambre de inmortalidad, y lejos de satisfacerla, contradícela. La verdad racional y la vida están en contraposición. ¿Y hay acaso otra verdad que la verdad racional?

Debe quedar, pues, sentado, que la razón, la razón humana, dentro de sus límites, no sólo no prueba racionalmente que el alma sea inmortal y que la conciencia humana haya de ser en la serie de los tiempos venideros indestructible, sino que prueba más bien, dentro de sus límites, repito, que la conciencia individual no puede persistir después de la muerte del organismo corporal de que depende. Y esos límites, dentro de los cuales digo que la razón humana prueba esto, son los límites de la racionalidad, de lo que conocemos comprobadamente. Fuera de ellos está lo irracional, que es lo mismo que se la llame sobre-racional que infra-racional o contra-racional; fuera de ellos está el absurdo de Tertuliano, el imposible del certum est, quia impossibile est. Y ese absurdo no puede apoyarse sino en la más absoluta incertidumbre.


I do not know why so many were offended, or took occasion to appear so, when Brunetière proclaimed again the bankruptcy of science (†). As a substitute for religion, science has always failed, the same way that reason fails as a substitute for faith. Science will be able to satisfy our growing need for logic and mental calculation, our desire to apprehend and understand the truth—indeed, it already does this better now than ever before. But science does not meet our needs for affection or will, our hunger for immortality: it is so far from satisfying these needs that it contradicts them directly. Rational truth stands in opposition to life. Is there perhaps a truth other than the rational?

It must be conceded that reason—human reason, operating within its essential limits—fails to prove that the soul is immortal, rationally speaking, and that human consciousness persists indestructible in the series of future times. More than that, our reason succeeds in proving—within the limits of its operation, I repeat—that individual consciousness cannot endure beyond the death of the material organism on which it depends. The limits of this proof are rational limits, known because we test them. Beyond them lies the irrational, which might just as easily be invoked as super-rational, or infra-rational, or counter-rational. This is the domain of what Tertullian calls the absurd, the impossible: “It is certain, because it is impossible” (de Carne Christi 5). Such absurdity can only dwell in the most absolute uncertainty.


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(†) Ferdinand Brunetière (1849-1906) was a French critic and professor of literature at the École Normale (which he entered by dint of publishing articles and books, since he failed his one chance at examinations). A devout Catholic, he published at least two articles which questioned popular conceptions of science and its benefits (cf. Revue des Deux Mondes 94.214-26, 127.97-118).