If we find that we have been leaving thanksgiving out of our lives, if we have been allowing ourselves to grumble instead of praise, if we have indulged in unhappiness instead of in gladness—we should instantly set about the breaking of a new path, a thanksgiving path. It will not be easy at first, for gloomy dispositions when long indulged persist in staying in our lives. But they can be conquered, and we should not pause in our effort until we have trained ourselves entirely away from everything that is cheerless and ungrateful, into the ways of joy and song.
A Christian Thanksgiving Meditation
The Fight of Faith 