Unended Quest:
An Intellectual Autobiography

Karl Popper

"There is no philosopher writing in English who can match Karl Popper in range or in the quality of work. …Politics, science, art…in fact few broad areas of human thought remain unillumined by Popper's work." Bryan Magee

"Unended Quest…may prove as enduring in this century as the autobiography of John Stuart Mill was in the last. [Popper] will mainly be remembered for his work on epistemology, especially his characterization of scientific investigation as a hypothetico-deductive process and his espousal of falsifiability as a criterion for demarcating between science and pseudo-science."
— The Times (London)