Harold B. Lee
"The most important of all the commandments of God is that one that you are having the most difficulty keeping today. If it is one of dishonesty, if it is one of unchastity, if it is one of falsifying, not telling the truth, today is the day for you to work on that until you have been able to conquer that weakness. Put that aright and then you start on the next one that is most difficult for you to keep. That’s the way to sanctify yourself by keeping the commandments of God" (Teachings of Harold B. Lee, p82).
