From an article in the Philadelphia Press, reprinted over at Every Writer:
Thanksgiving goes probably far deeper than you folks suppose. I am not sure but it is the source of the highest poetry—as in parts of the Bible. Ruskin, indeed, makes the central source of all great art to be praise (gratitude) to the Almighty for life, and the universe with its objects and play of action.
We Americans devote an official day to it every year; yet I sometimes fear the real article is almost dead or dying in our self-sufficient, independent Republic. Gratitude, anyhow, has never been made half enough of by the moralists; it is indispensable to a complete character, man’s or woman’s—the disposition to be appreciative, thankful. That is the main matter, the element, inclination—what geologists call the trend. Of my own life and writings I estimate the giving thanks part, with what it infers, as essentially the best item. I should say the quality of gratitude rounds the whole emotional nature; I should say love and faith would quite lack vitality without it. There are people—shall I call them even religious people, as things go?—who have no such trend to their disposition.”
November 27, 1884