I think that it would be very useful to start with the concept dialogue itself.
In order to do this we had better start to contemplate on the basic meanings of the word "dialogue".
For example, dialogue basicly means "a conversation between two or more people."
the very basic inference I can make from here is that
you do not have to change yourself when you make a dialogue. On the contrary, it is a way to express your own ideas.
I am waiting for much better points , since this is a translators' forum.
