My favorite quote on the subject is by Karl G. Maeser:
"I have been asked what I mean by 'word of honor.' I will tell you. Place me behind prison walls--walls of stone ever so high, ever so thick, reaching ever so far into the ground--there is a possibility that in some way or another I may escape; but stand me on the floor and draw a chalk line around me and have me give my word of honor never to cross it. Can I get out of the circle? No. Never! I'd die first!"
Simply ask yourself: “ ‘Is it right? Is it true?’ not ‘Is it expedient, satisfactory, convenient, or profitable?’ ” Then follow your honest answer. (In Conference Report, Apr. 1982, p. 13; or Ensign, May 1982, p. 11.)
Good luck with your lessons.