purpose of evolution

This relates to my thinking on banning the evil symbol of the confederate flag.

EVIL AS CATALYST
"...a condition of moral holiness on Earth......can be achieved only if the evil has first come into existence; then the power needed to overcome the evil will yield a power that can reach the heights of holiness. A field has to be treated with manure and the manure has to ferment in the soil; similarly, humanity needs the manure of evil in order to attain to the highest holiness. And herein lies the mission of evil. A man's muscles get strong by use; and equally, if good is to rise to the heights of holiness, it must first overcome the evil which opposes it. The task of evil is to promote the ascent of man. Things such as this give us a glimpse into the secret of life. Later on, when man has overcome evil, he can go on to redeem the creatures he has thrust down, and at whose cost he has ascended. That is the purpose of evolution."
-- Rudolf Steiner

http://wn.rsarchive.org/…/Engli…/RSPAP1986/19060829p01.html…