" Do you know of the uncertainty principle, Marjorie?” “I am educated,” she snorted, very much annoyed with him. “Then you know that with very small things, we cannot both know where they are and what they are doing. The act of observing them always changes what they are doing. Perhaps God does not look at us individually because to do so would interrupt our work, interfere with our free will…. "
― Sheri S. Tepper , Grass (Arbai #1)