- It is single; it draws a decoration that was never seen before, and will never be seen again, and that, untouched, varies with the journey of the sun, shifts the interrelation of a score of delicate lines at the mere passing of time, though all the room be motionless. - "Essays", Alice Meynell.
- The interrelation of painting and scene- painting, each in turn affecting the other, is far closer than most historians of art have perceived. - "A Book About the Theater", Brander Matthews.
- The interrelation of the persons mentioned in Philemon and Colossians shows that the occasion is the same. - "The Making of the New Testament", Benjamin W. Bacon.