A rock doesn't bother to try harder and is quite pleased with itself. Rocks have no prejudices and are not at all condescending. Each rock is unique and many have obvious character and beauty. A rock will usually do exactly what is expected of it. Although there is a great many widely varied types of rocks, they all seem to get along.
Rocks are useful as building materials and for mashing stuff.
Rocks are long lasting. Rocks break no rules, laws, treaties or promises of any kind. Rocks are usually nearby and available for whatever purpose you have in mind. Rocks are aloof and don't need to adopt an opinion on any issue. People will not take a rock lightly.