Answer:
Sometimes dark and sometimes bright I make my way among twinkling lights. Seas and oceans obey my call yet mountains I cannot move at all. My face is marred and gray But I'm majestic anyway
The more you take of me the more you leave behind.
Sometimes I am white, sometimes I am dark. Most people love me. What am I?
In your fire you hear me scream creaking and whining yet I am dead before you lay me in your hearth.
I never was but always will be. No one ever saw me but everyone knows I exist. I give people the motivation to better themselves everyday
Whoever made me don't want me. Whoever bought me don't need me. Whoever use me don't know me.