Devil(force) works wonders if used in complexity with patience(complexity). All engg problems discuss about "FORCE management against PERSISTENCE". All engg colleges must note that ignorance to ignorance of ignorance by ignorance for ignorance is knowledge(social). All medical colleges must note that biochemical reactions(why-what-how-where) are by FORCE management against PERSISTENCE.

Force is devil.
In other words,being "patience to patience of patience by patience for patience" is "force(devil) of force(devil)".