Of Clouds and Clocks. An Approach to the Problem of Rationality and the Freedom of Man. The Arthur Holly Compton Memorial Lecture, Presented at Washington University, April 21, 1965.

Bookseller Notes

Inscribed by the author on the half-title: 'To Alistair Milne, with kind regards from Karl Popper, January 1971'. The recipient was a philosopher, based then at Queen's University, Belfast, and working in the areas of English Idealism and political philosophy.An important lecture, subsequently collected in 'Objective Knowledge' (1978), in which Popper, with reference to a North American tradition, and particularly the work of Charles Sanders Peirce and Compton himself - who provides 'Compton's problem', of how external events and engagements affect one's actions, which the author assesses in relation to the classical Cartesian 'problem' of the co-working of body and mind and its impact on human behaviour and will - proposes the need to formulate a 'new theory of evolution, and a new model of the organism'.