Knowing One's Place

איזהו עשיר השמח בחלקו - 

He is happy just being the rich person he is and doesn't also think that he is ALSO a great Talmid Chochom, Posek, Darshan, Baal Tfilla etc.

He knows his place and is satisfied with it. 

[Rav Avraham Yehoshua Soloveitchik]