﻿THE 
  PROBLEM 
  OF 
  BODY 
  AND 
  MIND 
  255 
  

  

  scientific 
  investigators 
  can 
  entertain; 
  (VI) 
  the 
  theory 
  of 
  animism 
  

   or 
  the 
  soul-theory; 
  and 
  (VII) 
  the 
  identity 
  hypothesis, 
  or 
  two-aspect 
  

   theory, 
  or 
  correlation 
  theory. 
  

  

  A 
  case 
  can 
  be 
  reasonably 
  stated 
  for 
  the 
  theory 
  of 
  psychical 
  

   monism, 
  for 
  the 
  soul-theory, 
  and 
  for 
  the 
  two-aspect 
  theory, 
  and 
  a 
  

   decision 
  must 
  be 
  left 
  with 
  the 
  individual 
  according 
  to 
  his 
  personal 
  

   experience. 
  Each 
  theory 
  has 
  its 
  own 
  advantages 
  and 
  its 
  own 
  dif- 
  

   ficulties. 
  When 
  the 
  biological 
  facts 
  are 
  dominant 
  in 
  the 
  mind 
  the 
  

   balance 
  will 
  swing 
  towards 
  the 
  ' 
  two-aspect 
  theory 
  ' 
  or 
  * 
  identity 
  

   hypothesis/ 
  which 
  regards 
  the 
  living 
  creature 
  as 
  a 
  psycho-physical 
  

   unity, 
  psychosis 
  and 
  neurosis 
  being 
  two 
  aspects 
  of 
  one 
  and 
  the 
  

   same 
  continuous 
  life. 
  

  

  Perhaps, 
  as 
  in 
  the 
  case 
  of 
  vitalism, 
  the 
  most 
  consistent 
  scientific 
  

   position 
  is 
  to 
  keep 
  firmly 
  to 
  the 
  fact 
  that 
  just 
  as 
  the 
  everyday 
  

   functions 
  of 
  the 
  organism, 
  not 
  to 
  speak 
  of 
  its 
  development, 
  hered- 
  

   ity, 
  and 
  evolution, 
  cannot 
  be 
  adequately 
  described 
  in 
  terms 
  of 
  

   chemico-physical 
  concepts, 
  so 
  it 
  appears 
  that 
  many 
  of 
  the 
  forms 
  of 
  

   behaviour 
  cannot 
  be 
  adequately 
  described 
  in 
  terms 
  of 
  the 
  concepts 
  

   of 
  biology. 
  A 
  new 
  aspect 
  of 
  reality 
  is 
  expressed 
  requiring 
  new 
  

   categories 
  psychological 
  categories. 
  This 
  is 
  but 
  a 
  pedantic 
  way 
  

   of 
  expressing 
  what 
  was 
  said 
  of 
  old: 
  "Surely 
  the 
  life 
  is 
  more 
  

   than 
  food." 
  

  

  