God could have made us all Sanguines.
We could have lots of fun but accomplish little.
He could have made us all Melancholies.
We would have been organized and charted but not very cheerful.
He could have made us all Cholerics.
We would have been set to lead, but impatient that no one would follow!
He could have made us all Phlegmatics.
We would have had a peaceful world but not much enthusiasm for life.
We need each temperament for the total function of the body.
Each part should do its work to unify the action and produce harmonious results.
-Florence Littauer in The Gift of Encouraging Words