...a basic law:
the more you practice the art of thankfulness, the more you have to be thankful for. This, of course, is a fact. Thankfulness does tend to reproduce in kind. The attitude of gratitude revitalizes the entire mental process by activating all other attitudes, thus stimulating creativity.
Happy are those who knowing they are subject to uncertain changes, are prepared and armed for either fortune; a rare principle, and with much labor learned in wisdom's school