Keeping relationship strong for couples

Recipe for a peaceful and long lasting relationship:

1. Never be mean to each other. 
2. Do not induce sarcasm in your conversations. 
3. Never try to over smart each other.
4. Respect and appreciate individuality. 
5. Do not look for discrepancies in personalities rather celebrate goodness of each other.
6. And never act on doubts, as they are biggest mines in a relationship.   

Now by saying all this, I do not mean that one should ignore all the problems a couple may have, but once you have determined not to enter in to a conflict, I believe by keeping it simple and following above steps, rest of it can easily be dealt with.