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  THE 
  PROBLEM 
  OF 
  BODY 
  AND 
  MIND 
  

  

  activity 
  are, 
  on 
  this 
  view, 
  different 
  aspects 
  of 
  one 
  natural 
  

   occurrence. 
  What 
  we 
  have 
  to 
  do 
  with 
  is 
  the 
  unified 
  life 
  

   of 
  a 
  psycho-physical 
  being, 
  a 
  body-mind 
  or 
  mind-body. 
  

  

  The 
  advantages 
  of 
  the 
  two-aspect 
  theory, 
  if 
  it 
  is 
  tenable, 
  

   are 
  (1) 
  that 
  it 
  does 
  justice 
  to 
  the 
  extraordinarily 
  intimate 
  

   inter-dependence 
  of 
  what 
  we 
  call 
  ' 
  mental 
  processes 
  ' 
  and 
  

   ' 
  brain-processes 
  '. 
  It 
  regards 
  them 
  as 
  two 
  equally 
  real 
  

   aspects 
  of 
  the 
  continuous 
  life 
  of 
  the 
  organism. 
  There 
  is 
  

   not 
  merely 
  a 
  material 
  watch 
  with 
  a 
  ticking 
  which 
  we 
  call 
  

   consciousness; 
  there 
  is 
  not 
  merely 
  a 
  thought-life 
  with 
  an 
  

   illusion 
  of 
  associated 
  things 
  ; 
  there 
  are 
  not 
  two 
  watches 
  

   which 
  keep 
  time 
  without 
  interacting, 
  nor 
  yet 
  two 
  watches 
  

   which 
  interact; 
  there 
  is 
  one 
  watch 
  with 
  two 
  sides, 
  which 
  

   we 
  call 
  objective 
  and 
  subjective. 
  The 
  objective 
  side 
  is 
  the 
  

   body 
  as 
  a 
  living 
  whole; 
  the 
  subjective 
  side 
  in 
  Man's 
  case 
  

   is 
  the 
  unity 
  of 
  mind. 
  (2) 
  The 
  psycho-physical 
  being 
  is 
  one, 
  

   but 
  its 
  two 
  aspects 
  are 
  not 
  always 
  equally 
  clear 
  to 
  us. 
  In 
  

   thinking 
  out 
  a 
  mathematical 
  problem 
  we 
  may 
  be 
  quite 
  un- 
  

   aware 
  of 
  anything 
  but 
  our 
  thought-experiments, 
  yet 
  the 
  

   evidence 
  points 
  to 
  the 
  possibility 
  of 
  these 
  being 
  continued 
  

   by 
  us 
  (by 
  the 
  organism) 
  without 
  any 
  conscious 
  endeavour. 
  

   In 
  the 
  application 
  of 
  an 
  anaesthetic, 
  one 
  level 
  after 
  another 
  

   of 
  the 
  conscious 
  life 
  is 
  obliterated 
  in 
  precise 
  relation 
  to 
  the 
  

   degree 
  of 
  chloroforming, 
  till 
  by 
  and 
  by 
  complete 
  uncon- 
  

   sciousness 
  may 
  result. 
  It 
  looks 
  as 
  if 
  the 
  uninterrupted 
  

   life 
  of 
  the 
  instrument 
  kept 
  the 
  player 
  in 
  being, 
  it 
  looks 
  as 
  

   if 
  the 
  life 
  were 
  one. 
  (3) 
  It 
  is 
  extremely 
  difficult 
  to 
  think 
  

   of 
  the 
  mind 
  in 
  the 
  ante-natal 
  period 
  ; 
  it 
  is 
  less 
  difficult 
  to 
  

   think 
  of 
  a 
  psycho-physical 
  being, 
  in 
  whose 
  one-cell 
  phase 
  

   the 
  psychical 
  aspect 
  is 
  as 
  non-explicit 
  as 
  it 
  is 
  in 
  the 
  adult 
  

   life 
  during 
  deep 
  anesthesia. 
  (4) 
  It 
  is 
  easier 
  to 
  think 
  of 
  

   evolution 
  on 
  this 
  double-aspect 
  view, 
  for 
  what 
  has 
  come 
  

  

  