Rudyard Kipling

I keep six honest serving-men
  (They taught me all I knew);
Their names are What and Why and When
  And How and Where and Who.
I send them over land and sea,
  I send them east and west;
But after they have worked for me,
  I give them all a rest.

I let them rest from nine till five,
  For I am busy then,
As well as breakfast, lunch, and tea,
  For they are hungry men.
But different folk have different views.
  I know a person small-
She keeps ten million serving-men,
  Who get no rest at all!

She sends'em abroad on her own affairs,
  From the second she opens her eyes-
One million Hows, two million Wheres,
  And seven million Whys!

   
From The Elephant's Child