Native American Proverb

And S/He giveth you all that ye ask for.  

But if ye count the favours of The Beloved,

never will ye be able to number them.

Verily, humankind is given up to injustice and ingratitude.

--Quran Surah Ibrahim (14:34)--

Wikipedia on Gratitude Journals

Tips for Keeping a Gratitude Journal

The Power of Gratitude from Oprah.com