THE DATA OF PHILOSOPHY. 155 



which not only cannot directly affect them, but cannot 

 even indirectly affect them. A wound produced by a 

 violent blow from behind, is a vivid manifestation the con- 

 ditions of occurrence of which were neither among the faint 

 nor among the vivid manifestations; and the conditions to 

 the persistence of which are bound up with the vivid mani- 

 festations in some unmanifested way. So that whereas in 

 the faint order, the conditions of occurrence are always 

 among the pre-existing or co-existing manifestations; in 

 the vivid order, the conditions of occurrence are often not 

 present. 



Thus we find many salient characters in which mani- 

 festations of the one order are like one another, and unlike 

 those of the other order. Let us briefly re-enumerate these 

 salient characters. Manifestations of the one order are 

 vivid and those of the other are faint. Those of the one 

 order are originals, while those of the other order are copies. 

 The first form with one another a series, or heterogeneous 

 current, that is never broken ; and the second also form with 

 one another a parallel series or current that is never broken : 

 or, to speak strictly, no breakage of either is ever directly 

 known. Those of the first order cohere with one another, 

 not only longitudinally but also transversely; as do also 

 those of the second order with one another. Between mani- 

 festations of the first order the cohesions, both longitudinal 

 and transverse, are indissoluble; but between manifesta- 

 tions of the second order, these cohesions are most of them 

 dissoluble with ease. While the members of each series or 

 current are so coherent with one another that the current 

 cannot be broken, the two currents, running side by side as 

 they do, have but little coherence the great body of the 

 vivid current is absolutely unmodifiable by the faint, and 

 the faint may become almost separate from the vivid. The 

 conditions under which manifestations of either order oc- 

 cur, themselves belong to that order; but whereas in the 

 faint order, the conditions are always present, in the vivid 



