The thesis specifies how Franz Brentano inspired some of his students and how those students, in their turn, influenced the next generation of psychologists. After outlining the essentials of Aristotle's psychology, the thesis explains some general positions that Brentano borrowed from Aristotle. It goes on to relate Brentano's concepts of 'presentation,' 'unity of consciousness,' and 'difference between the mental and physical,' as well as his call for a 'science of the mind' to ideas of Christian von Ehrenfels, Carl Stumpf and Alexius Meinong.Ehrenfels thought that a mental element, which he named gestalt quality, explains why a string of presentations has a certain form. The thesis then looks at a book of Edgar Rubin, even though Rubin w...