1. Let go of the idea that happiness is to be found in things outside oneself.
Happiness does not depend on accumulating more things, but on the mindset we have concerning the things we already do possess.
2. Happiness does not consist in having more, but in appreciating more. As Sheen wrote, "It is not so much what happens in your life that matters; it is rather how you react to it."
3. What is important is not getting an external result, but putting our best effort forth in trying to do something good.
"The talents we have must be put to work, but if they yield only a certain return, we do not murmur because the return is not greater." - Fulton Sheen
4. The most important battle, however, is not external. It is the one that occurs in the soul.
"He who does not find the enemy within will find the enemy without. If we don't combat our own selfishness, we will selfishly combat other people" - Fulton Sheen
5. Since God is a better artisan than you, the more you abandon yourself to Him, the happier He can make you.