People say empty vessels make the most sound or empty vessels make the most noise to mean that people who talk a lot and give their opinions a lot are often not very intelligent or talented. There's a lot of truth in that old saying, `Empty vessels make the most sound'. Those who are actually content with their choices are not usually interested in telling the rest of us about them. Note: People like this can be called empty vessels. These `experts' who talk a lot but actually say nothing have been shown up for the empty vessels they are. Note: A vessel is a container such as a jug, pot or jar.