How vain it is to sit down to write when you have not stood up to live! – Henry David Thoreau, journal, 1851 August 19th

Helen started, and said she feared she had been sitting too long idle. – Maria Edgeworth (1768–1849), Helen, 1834

[T]hey marched and counter-marched, clapped their hands, stamped hard upon the floor, and performed various evolutions for the purpose of circulating the blood, which by sitting too long is apt to stagnate, and render them, particularly in this climate, dull and sleepy. – Joseph Holt Ingraham, South-West, 1835 [Originally published anonymously, “By a

Reginald was nearly all day at his office, and half the night at his stand-up desk in his room. – Henry Kingsley, “Reginald Hetherege,” 1874