In playing the all ten fingers are in motion
It won't do to move some fingers only and not others
To produce good music, the ten fingers should move rhythmically and in coordination
A Party Committee should keep a firm grasp on its central task and at the same time
Around its central task, it should unfold the work in other fields
Some play the piano well and some badly, and there is a great difference in the melodies they produce
Members of the party committee must learn to "play the piano" well