Doctrine and Covenants 107:99

"Wherefore, now let every man learn his duty, and to act in the office in which he is appointed, in all diligence."

Priesthood supports Family

"He has given you His power to do great things. As you fulfill your duty to God, you will strengthen and bless your family. This is your greatest priesthood duty."
Elder David Beck

Attitude

Ella Wheeler Wilcox:

It is easy enough to be pleasant,
When life flows by like a song,
But the man worth while is one who will smile,
When everything goes dead wrong.

Courage

"A moral coward is one who is afraid to do what he thinks is right because others will disapprove or laugh. Remember that all men have their fears, but those who face their fears with dignity have courage as well."
President Monson

Someone has said that courage is not the absence of fear but the mastery of it.