“Order and simplification are the first steps towards mastery of a subject” (Thomas Mann)

Chaos means a state of utter confusion; the inherent unpredictability in the behavior of a complex natural system (such as the atmosphere, boiling water, or the beating heart.
Order means a proper, orderly, or functioning condition; a group of people united in a formal way; community; a a rank, class, or special group in a community or society.

“Chaos was the law of nature; Order was the dream of man.” (Henry Adams)