In this week's parsha, Devarim, we learn about leadership. Moshe has been told he will not enter the Promised Land. He has appointed Yehoshua as his successor. He could have spent his time remembering all the ways in which he was amazing, or retiring and simply remaining in his tent. He chose neither of these options. Instead, because he was mission driven, he threw himself into a new role- acting as a teacher. And he taught Bnei Yisrael some very important lessons. These included: