of a particular culture but from "the point of view of the universe" where integrating one's set of values with the principles of some higher truth ("selective copying" is the example he gives) may result in instances of non-conformity and other kinds of differentiation within society. The concept of "fittingness" introduces the value of integrity which Cox, La Caze and Levine discuss in their article Integrity [2001]. The concept is defined in terms of the relation between the different aspects of one's life – aesthetic, social, intellectual etc. – and in maintaining some sort of balance between them to give a sense of unity or wholeness. Views on integrity range from the practical requirements of honesty and truthfulness on the one hand, where Aristotle could write "with a true view all the data harmonise and with a false view the facts soon clash", to more general approaches regarding meaning and identity, or "wisdom and self-knowledge". Secondary values The end of the nineteenth and the beginning of the twentieth centuries saw an expansion in the number of values over and above the "classical" or primary values of beauty, goodness and truth. Some, like love, friendship and affection, clearly come from the Christian tradition and were discussed by philosophers like Moore and Brentano. A more complex group revolving around concepts such as power, spirit and the will were introduced as values by Brentano and Hartmann and owe as much to the thoughts of Kant and Schopenhauer as they do to Christianity. The emergence of a third group of values can be seen as a result of the expansion of the field away from traditional ethics, and in this group there begin to appear more material values – what Plato called the "goods of the body" – such as life, health and strength in the lists of Hartmann and Frankena. Some early attempts were made at compiling a longer set of values and three of these can be mentioned here. R.B.Perry, referred to by Frankena, and whose work The General Theory of Value [1926] was called "the magnum opus of the new approach" by the Encyclopædia Britannica, increased the total number of categories by adding to the fields of aesthetics, ethics and knowledge the three further fields of religion, economics and politics; An earlier work, Lebensformen [1914], by the psychologist, Eduard Spranger, set out a similar list describing six types of personality, namely