First you have to think something over, mull it over in your mind and look at it from all sides. Consider the pros and cons and if it is important or not. Opinions matter because too many of us do not examine a thing or a subject enough, and jump headlong into a situation and realize oops … should have done it differently. Sometimes when this occurs we express expletives and later have to pay the price. Opinions matter and in order to have a thoughtful opinion on a matter one should really think things through.