A worthy quote from issue 1 of 4 part limited series comics Gangland from Vertigo Comics on cameras and photos..

   I’ve been always fascinated by cameras. Little boxes and inside
   each one, a tiny thief, ready to steal at touch of a button. To
   pocket a moment of time.

   What they steal can never be returned; what they take they keep
   forever…

   Stealing moments in time with my invisible eye…
  
   As if I could replace what’s missing in my heart with a few spare
   moments clipped from other people’s lives.