Heraclitus B 126 D.-K. occurs in a scholion on Tzetzes' commentary on the Iliad. According to the first edition by G. Hermann on which all editors of Heraclitus have based their text, it reads as follows: τ ψυχρ θρεται, θερμν ψχεται, γρν αανεται, καραλον νοτζεται.

The volume presents essays on the philosophical explanation of the relationship between body and soul in antiquity from the Presocratics to Galen. The title of the volume alludes to a phrase found in Plato, Aristotle and Plotinus, referring to aspects of living behaviour involving both body and soul, and is a commonplace in ancient philosophy, dealt with in very different ways by different authors.