"Wherefore, now let every man learn his duty, and to act in the office in which he is appointed, in all diligence."
Doctrine and Covenants 107:99

I love the Hymn, Put your shoulder to the wheel.  The tune and the words are full of energy and encouragement to work and not quit.
When I was a young girl, if I complained about my chores or lacked in energy to do them and do them well, my father would sing, "Put your shoulder to the wheel push along.  Do your duty with a heart full of song. We all have work, let no one shirk, put your shoulder to the wheel.  As I led this song in Sacrament Meeting the memory of my dad singing this to me played in my mind, making it hard for me not to smile. Keep climbing, keep pushing.