I am writing this at my standing desk, which is against the window. The window offers a pleasant prospect over the lime trees and sun-bathed hills — delightful natural scenery. – Friedrich Nietzsche, letter to sister Elisabeth, 1862, wording slightly altered
Still, it is customary to keep pupils sitting too long at once. They ought to stand occasionally, or march around the room; and they should be required to exercise a few minutes in the open air, once an hour, at least. – American Annals of Education and Instruction, April 1832
After they had dined, Mrs. Teachum told them she thought it proper that they should use some exercise in the cooler part of the day, lest, by sitting too much, they should injure their health. – Sarah Fielding (1710–1768), “The Governess, or The Little Female Academy,”