Philosophical interests of Joseph Życiński in the domain of the philosophy of science were focused on the debate concerning the nature of science and philosophy of science that followed the Einstein-Planck revolution in science. The unexpected discovery of the philosophical, extra-scientific presuppositions in science, as well as of the extra-rational factors determining the way these presuppositions are accepted in science were to be explained within the meta-scientific framework. It is the aim of this paper to present ˙ Życiński’s diagnosis of (...) this post-revolutionary situation in the philosophy of science as well as his critique of the metascientific answers to this challenge. The reasons will be given why all those answers are put under two dichotomous rubrics of _internalism_ and _externalism_. It will be also explained how Życiński intends to supersede this false in his opinion opposition with a new concept of the doxatic rationality. However, the details of the metascientific proposal of Życiński will be given only in the subsequent paper. In order to perform the aim of the paper the metatheoretic tools set out by Popper will be used. (shrink)

One of the main problems of modern rationalistic theories of science is the non-eliminability of the subjective factor in the development of science. Temperate rationalism of Newton-Smith was an attempt to solve this problem. J. Życiński developed his own version of temperate rationalism in which the subjective factor played much more substantial role. In the article I am presenting his specific idea of the personal _commitment_ as a necessary condition for rationalism and science. In the first section I proceed to (...) reconstruct ˙ Życiński’s argument leading him to the conclusion of this epistemological necessity. Next in the section 2 I present his idea of the epistemological uncertainty principle as a consequence of the subjective _commitment_. In sections 3 and 4 I explore axiological and pragmatic aspects of the Życiński solution. Finally, in the section 5 I do compare his temperate rationalism with Newton-Smith’s proposal in the context of the Polanyi’s idea of personal knowledge showing differences in their respective approach to the role of the subjective factor in science and rationalism. (shrink)