I had a little trouble with that quote, because, as a whole, I
  believe you can plan to some degree, the course of action in
  life. but then I thought about it - are outcomes ever certain?
  No, not at all. Like the ancient roman said, "nothing is certain
  except death... and taxes" - and that remains true 2,000 years
  later -- everything else is, perhaps less of a crap-shoot (roll
  of the dice) but m...ore somewhere between planning and bumbling
  and hoping the outcome leans more on the planning side (outcomes
  you hope and work hard on) - and bumbling (life's unexpected
  things getting in the way, or support systems dropping from you
  ("rug pulled out from under your feet"), or just plain ol'
  mistakes or emotional quandries making you forget your planning,
  or times when your brain just quits on you, or ANY plan that
  involves another person... or even ... "