Take Care Of The Rocks ... FIRST 

A philosophy professor stood before his class
  and had some items in in front of him. When
  class began, wordlessly he picked up a large
  empty mayonnaise jar and proceeded to fill it
  with rocks, rocks about 2" in diameter. He then
  asked the students if the jar was full?

  They agreed that it was. So the professor then
  picked up a box of pebbles and poured them into
  the jar. He shook the jar lightly. The pebbles,
  of course, rolled into the open areas between
  the rocks. He then asked the students again if
  the jar was full. They agreed it was.

  The students laughed. The professor picked up a
  box of sand and poured it into the jar. Of
  course, the sand filled up everything else.
  Now," said the professor, "I want you to
  recognize that this is your life. The rocks are
  the important things - your family, your
  partner, your health, your children - anything
  that is so important to you that if it were
  lost, you would be nearly destroyed.

  The pebbles are the other things that matter
  like your job, your house, your car. The sand
  is everything else. The small stuff.  "If you put
  the sand into the jar first, there is no room
  for the pebbles or the rocks. The same goes for
  your life. If you spend all your energy and
  time on the small stuff, you will never have
  room for the things that are important to you.
  Pay attention to the things that are critical
  to your happiness.

  There will always be time to go to work, clean
  the house, give a dinner party and fix the
  disposal. "Take care of the rocks first - the
  things that really matter. Set your priorities.
  The rest is just sand."
 

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