My thanksgiving is perpetual

My thanksgiving is perpetual

I am grateful for what I am & have. My thanksgiving is perpetual. It is surprising how contented one can be with nothing definite — only a sense of existence….Or how I laugh when I think of my vague indefinite riches. No run on my bank can drain it, for my wealth is not possession but enjoyment.

-Henry David Thoreau, letter to Harrison Gray Blake, 1856.