Are you happy?  It's the only way to be, kid.
Yes, be happy, it's a good nice way to be.
But not happy-happy, kid, don't
be too doubled-up doggone happy.
It's the doubled-up doggone
happy-happy people . . . bust hard
. . . they do bust hard . . . when they bust.
Be happy, kid, go to it,
but not too doggone happy.

[by Carl Sandburg]