Review of A. J. Ayer: A Life by Ben Rogers
by Kevin Magill
Review published in Radical Philosophy, 100, March/April 2000
Making Sense of the Other: Husserl, Carnap, Wittgenstein, and Heidegger
From the Proceedings of the Twentieth World Congress of Philosophy
Phenomenology and logical positivism both subscribed to an empirical-verifiability criterion of mental or linguistic... more Phenomenology and logical positivism both subscribed to an empirical-verifiability criterion of mental or linguistic meaning. The acceptance of this criterion confronted them with the same problem: how to understand the Other as a subject with his own experience, if the existence and nature of the Other's experiences cannot be verified. Husserl tackled this problem in the Cartesian Meditations, but he could not reconcile the verifiability criterion with understanding the Other's feelings and sensations. Carnap's solution was to embrace behaviorism and eliminate the idea of private sensations, but behaviorism has well-known difficulties. Heidegger broke this impasse by suggesting that each person's being included being-with, an innate capacity for understanding the Other. To be human is to be "hard-wired" to make sense of the Other without having to verify the Other's private sensations. I suggest that being-with emerged from an evolutionary imperative for conspecific animals to recognize each other and to coordinate their activities. Wittgenstein also rejected the verifiability criterion. He theorized that the meaning of a term is its usage and that terms about private sensations were meaningful because they have functions in our language-games. For example, "I'm in pain," like a cry of pain, functions to get the attention of others and motivate others to help. Wittgenstein's theory shows how Dasein's being-with includes "primitive" adaptive behavior such as cries, smiles, and threatening or playful gesture. As Dasein is acculturated, these behaviors are partially superseded by functionally equivalent linguistic expressions.
Criteria of Empirical Significance: a Success Story
An earlier version of this article received the Sir Karl Popper Essay Prize 2009 of the British Society for the Philosophy of Science.
The sheer multitude of criteria of empirical significance has been taken as evidence that the pre-analytic notion... more The sheer multitude of criteria of empirical significance has been taken as evidence that the pre-analytic notion being explicated is too vague to be useful. I show instead that a significant number of these criteria—by Ayer, Popper, Przełęcki, Suppes, and David Lewis, among others—not only form a coherent whole, but also connect directly to the theory of definition, the notion of empirical content as explicated by Ramsey sentences, and the theory of measurement; two criteria by Carnap and Sober are trivial, but can be saved and connected to the other criteria by slight modifications. A corollary is that the ordinary language defense of Lewis, the conceptual arguments by Ayer and Popper, the theoretical considerations by Przełęcki, and the practical considerations by Suppes all apply to the same criterion or closely related criteria. Furthermore, the equivalence of some criteria allows for their individual justifications to be taken cumulatively and, together with the entailment relations between nonequivalent criteria, suggest criteria for general auxiliary assumptions, comparative criteria, and more liberal conceptions of observation.