A characteristic synthesis first made its appearance at the height of classical Antiquity. It was art, chiefly plastic art, that determined the nature of this synthesis. Form as a unifying and systematising power is at the centre of life, takes possession of matter and organises it, transforms chaos into a cosmos; and in this exercise of power it realises itself, even though its fundamental nature is regarded as transcending all change and variation. Spiritual work is formative and selective; it is the triumphant realisation of form; it is necessary that life in all its stages of development should be permeated by this formative spiritual activity. There are numerous independent centres of life, but the tendencies from each are towards the realisation of the whole, and find their perfection in it alone. Thought, independent of the world, must extract from the medley of first impressions permanent forms, and unite these into a consistent representation of the whole; it finds the acme of its achievement in bringing this representation clearly to consciousness in a form that is complete and free from subjective addition. In conduct, an organisation and a unifying of the elements so as to produce a harmonious effect is the chief thing. From the chaotic mass of individuals, the state by constitution and law forms a living work of art, a differentiated organism. For the individual the chief matter in conduct is to bring the diverse forces in the soul into the right relation of order and gradation, to reach the highest of all harmonies, the harmonious life. All this involves particular estimates of value, a characteristic solution of the problems and a harmonising of the oppositions of our existence. It is a matter of general knowledge how this synthesis has elevated and ennobled life, and is still increasingly felt as an influence tending to further development and harmony. But it is equally well known how the progress of life has rebuffed the claim of this system of life to be the only valid one. We have become aware of contradictions which do not find sufficient acknowledgment in this system: a gulf deeper than it is able to transcend has made its appearance between man and his environment: in particular, the supremacy of form, which constitutes the basis of the system, has been shaken. Antiquity, at its highest development, had, without much consideration, given to form a living soul; its later course dissolved this union, the soul degenerated more and more into an inwardness of feeling, and gave up all claim, if not to the world, yet to its organisation and formation: form, deprived of soul, threatened to become superficial, and to change life into play and enjoyment. It was at this point that Christianity intervened with a powerful effect, but it has not, in the sense with which we are here concerned, produced an organised system of life.