"Before a man speaks it is always safe to assume that he is a fool. After he speaks, it is seldom necessary to assume it"

This quote by H. L. Mencken is an amusing way of saying that people often speak without thinking, and that it is typically obvious when someone has actually done so. It suggests that it is wise to be cautious when listening to somebody speak, as it is most likely that they will say something silly. It also recommends that it is not necessary to presume someone is a fool after they have spoken, as it is typically already obvious. This quote is a suggestion to believe before speaking, as it is frequently difficult to take back words once they have actually been stated. It is likewise a suggestion to be client and understanding when listening to others, as it is simple to make mistakes when speaking. Eventually, this quote is a suggestion to be mindful of our words and to believe prior to we speak.