Luftmensch
(n) Literally: "air man/person." A dreamer who is stuck in dreamland. A person who could do great things if only he’d start (or knew how to). Luftmenschen: (n pl) Literally: “air people.” Someone whose head is permanently in the clouds, dreaming impractical dreams. More concerned with the intellectual or artistic pursuits—even if they’re incapable of them—than earning a living.