Today's experiment:

Think about the following idea for the next 10 minutes
(look at a clock to keep yourself honest):

  The wealth required by nature is limited and is easy to procure;
  but the wealth required by vain ideals extends to infinity.

--Epicurus

Be sure to consider "wealth" in both its material and psychological aspects.
What did you notice?
Were you any different?
Are you still?
If so, how long do you think it will last?
Do you have the discipline to keep a log of your thoughts?
If not, why not?