So obviously no one will hold a job, make a marriage work, have many friends, reach maturity, or support a family if they always speak what is on their mind or always act as they feel inclined to.
However, if an atheist is married to a christian or muslim she shouldnt always keep her beliefs or objections to herself out of fear of offending her husband.
I'm just curious of some of your ways of judging when and when not to excercize self-restraint.