Well, I don't want to speak being a dictator into his life but, yes, my DS has a very strong personality.
I've learned he does best when I have high expectations for him and expect him to meet them. When I'm lazy about discipline, he willingly takes charge of anything and everything.
When he was still in a crib, he went there for time out/cool down periods. Helping him understand that his wants didn't trump the family's needs was/is very important in all of us being happy as a family.
Truth does not become more true by virtue of the fact that the entire world agrees with it, nor less so even if the whole world disagrees with it.
--Moses Maimonides