Not be the only pebble on the beach

Meaning:

• You say this to tell somebody that he or she is not the only person who is important in a situation or in a group.

Example sentence:

I'm fed up with you wanting to be in the centre of attention all the time but don't forget; you're not the only pebble on the beach.


Questions for you to answer:

1. What adjectives would you use to describe a person who thinks he or she is the only pebble on the beach?
2. What adjectives would you use to describe someone who's the opposite?
3. Do you have a similar idiom in your native language?