President Harold B. Lee:
Now, if you have made mistakes, make today the beginning of a change of
your lives. Turn from the thing that you have been doing that is wrong.
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" (The Teachings of Harold B. Lee, 82).