Fourthly, both Space and Time are indeed essential constituents of all our perceptions, thoughts, actions, at least in this life. Yet Time is perhaps the more real, and assuredly the richer, constituent of the two. But this rich reality applies only to Concrete or Filled Time, Duration, in which our experiences, although always more or less successive, interpenetrate each other in various degrees and ways, and are thus more or less simultaneous. An absolutely even flow of equal, mutually exclusive moments, on the contrary, exists only for our theoretical thinking, in Abstract, Empty, or Clock time. Already, in 1886, Professor James Ward wrote: 'In time, conceived as physical, there is no trace of intensity; in time, as psychically experienced, duration is primarily an intensive magnitude.'[35] And in 1889 Professor Bergson, in his _Essai sur les Donnees Immediates de la Conscience_, gave us exquisite descriptions of time as we really experience it, of 'duration strictly speaking', which 'does not possess moments that are identical or exterior to each other'.[36] Thus all our real soul life, in proportion to its depth, moves in Partial Simultaneity; and it apprehends, requires and rests, at its deepest, in an overflowingly rich Pure Simultaneity. Fifthly, Man is Body as well as Soul, and the two are closely interrelated. The sensible perception of objects, however humble, is always necessary for the beginning, and (in the long run) for the persistence and growth, of the more spiritual apprehensions of man. Hence Historical Persons and Happenings, Institutions, affording Sensible Acts and Contacts, and Social Corporations, each different according to the different ranges and levels of life, can hardly fail to be of importance for man's full awakening--even ethical and spiritual. Professor Ernst Troeltsch, so free from natural prejudice in favour of such a Sense-and-Spirit position, has become perhaps the most adequate exponent of this great fact of life, which is ever in such danger of evaporation amidst the intellectual and leading minority of men.