Great man is the one who is aware of his smallness in this universe! Greatness starts first of all with accepting the reality.
Palaces are for the little men not for the great men because great man is humble!
...You are a little boy. You want the moon to drink from as a golden cup; and so, it is very likely that you will become a great man -- if only you remain a little child. All the world'sgreat have been little boys who wanted the moon; running and climbing, they sometimes catch a firefly. But if one grow to a man's mind, that mind must see that it cannot have the moon and would not want it if it could -- and so, it catches no fireflies.' [Merlin]