Respecting, accepting but also changing

One often hears the words: If you wanna be my friend you have to take me as I am. This sentence justifies only 50%. Here you go with the arguments for this statement:

1. Friendship is about respecting each other. On the other hand it's also about respecting the other opinion and taking it to consideration.
2. Friendship is accepting each other but also the ability to accept criticism.
3. Friendship means seeing the shady sides of the other's personality and helping him to get rid of them.
4. Friendship includes having the readiness to change oneself and not being so stubborn to admit that one is wrong.
5. Friendship excludes any feelings of jealousy or competition and is more based on selflessness and loyalty.
6. Friendship leads you sometimes to make some sacrifices but it's definitely worth it.

That is my definition of friendship!)