Empedocles (c. 494-434 B.C.) achieved legendary status as a philosopher, scientist, healer, poet and orator. He made important contributions to the developments of European thought with his theory of the four elements, his detailed work on perception, respiration and cognition, and his understanding in the kinship in structure and form of the hierarchy of living creatures. Now available in paperback, this is the first full-scale edition this century of the extant fragments, which are grouped into two poems -- Physics and Katharmoi. In her Introduction, Professor Wright surveys the evidence for Empedocles' life and writings, and gives a clear account of the main lines of thought within a framework common to the poems. The fragments are presented in their contexts in a new ordering with full critical apparatus; they are followed by a translation and commentary on each, in which the linguistic, philosophical and scientific questions relevant to the text are examined. The Indexes cover sources, passages cited and subject matter, as well as a comprehensive concordance of Empedocles' vocabulary. This new in paperback edition has been updated with a bibliographic commentary covering the last fifteen years of Empedoclean scholarship, and is part of the Classic Latin and Greek texts series.