No one will know you forever.

i'm always asking myself; why do friends never stay? 

...and i finally have an answer:

“There are people that come into your life like boosters for a rocket. If you ever watch a rocket go into space, the boosters fall off when it reaches a certain altitude.

Some people are not equipped to handle the altitudes that you’re going to. So don’t be afraid when they fall off. They’re not bad people, they just couldn’t go where you’re going.”