Power is not a means, it is an end. One does not establisha dictatorship in order to safeguard a revolution; one makes the revolutionin order to establish the dictatorship.
Changemeans movement. Movement means friction. Only in the frictionless vacuum of anonexistent abstract world can movement or change occur without that abrasivefriction of conflict.
It is said that power corrupts, but actually it's moretrue that power attracts the corruptible. The sane are usually attracted byother things than power.