Answer:
I am a ship that can be made to ride the greatest waves. I am not built by objects but built by minds.
I am so delicate that even mentioning me breaks me. What am I?
I can climb mountains, cross streams, handle hundreds of feet each day, yet I never move. What am I?
Draw fire or fill me; I'm still empty.
Part carbon, part water, I am poison to the fishes. Many falsely claim my name, I am the pause that refreshes. What am I?
Almost everyone needs it, asks for it, gives it. But almost nobody takes it.