Tag Archive: rationalism

The lapse from enlightenment to positivism

Our prognosis regarding the associated lapse from enlightenment into positivism, into the myth of that which is the case, and finally of the identity of intelligence and hostility to mind, has been overwhelmingly confirmed. Our concept of history does not believe itself elevated above history, but it does not merely chase after information in the positivist manner. [xii]

The evolutionary character of social engineering

The political artist clamours, like Archimedes, for a place outside the social world on which he can take his stand, in order to lever it off its hinges. But such a place does not exist; and the social world must continue to function during any reconstruction. This is the simple reason why we must reform its institutions little by little, until we have more experience in social engineering.

This leads us to the more important second point, to the irrationalism which is inherent in radicalism. In all matters, we can only learn by trial and error, by making mistakes and improvements; we can never rely on inspiration, although inspirations may be most valuable as long as they can be checked by experience. [ch. 9, 181]

The question of the authoritative sources of knowledge

Yet the traditional question of the authoritative sources of knowledge is repeated even today — and very often by posi­tivists, and by other philosophers who believe themselves to be in revolt against authority.

The proper answer to my question ‘How can we hope to detect and eliminate error?’ is, I believe, ‘By criticizing the theories or guesses of others and — if we can train ourselves to do so — by criticizing our own theories or guesses.’ (The latter point is highly desirable, but not indispensable; for if we fail to criticize our own theories, there may be others to do it for us.) This answer sums up a position which I propose to call ‘critical rationalism’. It is a view, an attitude, and a tradition, which we owe to the Greeks. It is very different from the ‘rationalism’ or ‘intellectualism’ of Descartes and his school, and very different even from the epistemology of Kant. Yet in the field of ethics, of moral knowledge, it was approached by Kant with his principle of autonomy. This principle expresses his realization that we must not accept the command of an authority, however exalted, as the basis of ethics. For whenever we are faced with a command by an authority, it is for us to judge, critically, whether it is moral or immoral to obey. The authority may have power to enforce its commands, and we may be powerless to resist. But if we have the physical power of choice, then the ultimate respon­sibility remains with us. It is our own critical decision whether to obey a command; whether to submit to an authority.

Kant boldly carried this idea into the field of religion: ‘…in whatever way’, he writes, ‘the Deity should be made known to you, and even … if He should reveal Himself to you: it is you … who must judge whether you are permitted to believe in Him, and to worship Him.’

In view of this bold statement, it seems strange that Kant did not adopt the same attitude — that of critical examination, of the critical search for error — in the field of science. I feel certain that it was only his acceptance of the authority of Newton’s cosmology — a result of its almost unbelievable success in passing the most severe tests — which prevented Kant from doing so. If this interpretation of Kant is correct, then the critical rationalism (and also the critical empiricism) which I advocate merely puts the finishing touch to Kant’s own critical philosophy. And this was made possible by Einstein, who taught us that Newton’s theory may well be mistaken in spite of its overwhelming success.

So my answer to the questions ‘How do you know? What is the source or the basis of your assertion? What obser­vations have led you to it?’ would be: ‘I do not know: my assertion was merely a guess. Never mind the source, or the sources, from which it may spring — there are many possible sources, and I may not be aware of half of them; and origins or pedigrees have in any case little bearing upon truth. But if you are interested in the problem which I tried to solve by my tentative assertion, you may help me by criticizing it as severely as you can; and if you can design some experimental test which you think might refute my assertion, I shall gladly, and to the best of my powers, help you to refute it.’ [34-5]

Thou shalt not justify

Es kann also nicht mehr darauf ankommen, irgendwelche Problemlösungen sicher zu begründen, sondern nur darum, sie kritisch zu überprüfen, also sie im Hinblick auf mögliche Verbesserungen zu beurteilen, sie in diesem Zusammen­hange mit alternativen Lösungen zu vergleichen und nach Verbesserungen zu suchen. Eine solche Beurteilung setzt Maßstäbe – Bewertungsgesichtspunkte – voraus, die sich nach der Art der zu lösenden Probleme richten müssen. Die Problematik absoluter Rechfertigung hat sich damit in ein Problem komparativer Bewertung verwandelt. [11]