"At the heart of this quest was an ancient idea, the concept of symmetry, and how it was present in the foundations of physics but hidden in the world as we experience it."

"In art and nature, something is symmetrical if it looks the same when you move it one way or another, like a snowflake rotated 60 degrees; in science and math, a symmetry is something that does not change when you transform the system, like the length of an arrow when you turn it around or shoot it."