Abstract

A proof of pragmatism is proposed in Peirce's 1903 lecture series on Pragmatism as a Principle and Method of Right Thinking. It is necessary first to define what pragmatism is, a task for which a practitioner of the pragmatic maxim would be fitted, but which, however, must be highly problematic to a potential practitioner who does not yet know its full meaning. In order to clarify its meaning, Peirce uses a method he recommends for such conundrums in his 1891 article, “The Architecture of Theories,” that is, “to make a systematic study of the conceptions out of which a philosophical theory may be built, in order to ascertain what place each conception may fitly occupy in such a theory and to what uses it is adapted”. Peirce's systematic study of the basis of logic and pragmatism in relation to it begins to appear around 1898 and peaks in 1903 when pragmatism's definition and role within the sciences is established in these lectures.