Insanity: doing the same thing over and over again and expecting different results. (Albert Einstein)
I disagree. Or rather, there are situations where doing the same thing over and over again is the key to create different results.
So, if you do the same thing over and over again you should very often expect different results. Doing the same thing will trigger change.
If you every morning ignore your wife your marriage will change. If you take a hammer and hit the wall the wall will change, and one day there will be a hole. If you treat people in a fair and consistent way the respect for you will change - grow.
If you kick your dog over and over again it will die. And with the last kick the result will be different.
There are plenty of situations that are less drastic of course.
Every sound qoute makes sense only in specific contexts.