﻿LENGTHENING 
  OF 
  HUMAN 
  LIFE 
  FISHER 
  553 
  

  

  They 
  contrast 
  this 
  with 
  my 
  own 
  estimate 
  in 
  1909 
  of 
  what 
  hygiene 
  can 
  

   accomplish 
  and 
  maintain 
  that 
  eugenics 
  is 
  much 
  more 
  important 
  than 
  

   hygiene 
  as 
  a 
  means 
  of 
  lengthening 
  the 
  life 
  of 
  the 
  race. 
  

  

  But 
  changes 
  in 
  marriage 
  selection 
  can 
  only 
  slowly 
  influence 
  the 
  

   length 
  of 
  human 
  life. 
  It 
  can 
  only 
  operate 
  generation 
  by 
  generation 
  

   and 
  is 
  therefore 
  a 
  matter 
  for 
  future 
  centuries. 
  Meanwhile 
  it 
  is 
  good 
  

   to 
  know 
  that 
  we 
  can 
  greatly 
  help 
  ourselves 
  in 
  our 
  own 
  generation 
  

   through 
  hygiene, 
  and, 
  as 
  Stephen 
  Smith 
  said, 
  "send 
  messengers 
  of 
  

   hope 
  in 
  a 
  new 
  scientific 
  standard 
  of 
  long 
  life." 
  We 
  may 
  also 
  be 
  

   spurred 
  to 
  try 
  to 
  emulate 
  his 
  own 
  splendid 
  example 
  of 
  living 
  long 
  

   and 
  living 
  right. 
  

  

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