You totally missed the meaning of that quote. You may wish to go to your profile page and re-read it slowly.
“The free man owns himself.” No one else or the government owns a free man. He is free to damage himself, if he so chooses. If he chooses to damage himself, he is a fool and possibly a damns his soul. But if a man does not have the freedom to damage himself, if so wills, then he is not a free man at all.
there is no social contract? come on.