Eugene Halliday's work was wide-ranging in scope, and he brought together into a coherent whole concepts from hierology (sacred texts), art, religion, philosophy, psychology and science. From his insight into human thought and motivation, he stated that no school of thought has access to the only truth about reality, that no one religion possesses the only true path to the divine. "Each great philosopher has been a doorway for a part of Truth". In 1966 Eugene Halliday founded the Charity ISHVAL, together with the Liverpool businessman and philanthropist Fred Freeman and his wife Yvonne, and the actors David Mahlowe and Zero Mahlowe. ISHVAL, the Institute for the Study of Hierological Values, had as its aims and objectives: