Four personalities are bound to clash.
Sentiment: POSITIVE
A multiple personality is in a certain sense normal.
That's what protagonists do. They work hard, they have a conflict, they overcome the obstacles.
Two people in a conversation amount to four people talking. The four are what one person says, what he really wanted to say, what his listener heard, and what he thought he heard.
Different people bring out different aspects of ones personality.
Character development is conflict.
We are all multidimensional and kind of have dual personalities. Everyone puts on different roles depending on what circumstances they're in without even noticing that they do that.
I'm very interested, in all my books, in community, what binds people together, which I think is an obvious consequence of being the fourth of six children.
From my studies of genetics and neuroscience I have come to believe that people fall into four broad personality types - each influenced by a different brain chemical: I call them the Explorer, Builder, Director, and Negotiator.
The meeting of two personalities is like the contact of two chemical substances: if there is any reaction, both are transformed.
To play four hands requires two people who have great affinity for each other.