The is the final two of the 17 rules to live by, by Og Mandino.
Rule Sixteen… for a Better Way to Live:
Search for the seed of good in every adversity. Master that principle and you will own a precious shield that will guard you well through all the darkest valley you must traverse. Stars may be seen from the bottom of a deep well, when they cannot be discerned from the mountaintop. So will you learn things in adversity that you would never have discovered without trouble. There is always a seed of good. Find it and prosper.
Realize that true happiness lies within you. Waste no time and effort searching for peace and contentment and joy in the world outside. Remember that there is no happiness in having or in getting, but only in giving. Reach out. Share. Smile. Hug. Happiness is a perfume you cannot pour on others without getting a few drops on yourself.
To be continued in your life!