Solid state molecules are in continuous motion. Why don’t solids disintegrate into separate molecules?

There is a relationship between the molecules of a solid body in the form of a repulsive force and an attractive force. If the forces of repulsion between the molecules were greater than the forces of attraction, then the solid bodies would disintegrate into separate molecules. Solids do not disintegrate due to the fact that in solids the forces of attraction between molecules are much greater than the forces of repulsion. Each molecule in a solid is attracted by other molecules and attracts them to itself.