Answer:
I reach for the sky, but clutch to the ground. Sometimes I leave, but I am always around. What am I?
In many hall ways you would stand if not with me in hand.
I know a word of letters three. Add two and fewer there will be. What is the word?
You use a knife to slice my head but you weep beside me when I am dead
I have been the beginning of ideas for all time yet I am just one simple small object the things that you can use me for can be frustrating and also I can be pretty. I have some of the most valuable thing in the world on me yet almost everyone owns me.
Whoever made me don't want me. Whoever bought me don't need me. Whoever use me don't know me.