“The only exercise I ever take is walking up hospital stairs to visit friends who've damaged themselves by taking exercise.”

Source: Antifragile: Things That Gain from Disorder (2012), p. 122

As quoted in Four Talks for Bibliophiles (1958) by George Allen, p. 70

Variant: I wish you would tell me your secret. To get back my youth I would do anything in the world, except take exercise, get up early, or be respectable.
Source: The Picture of Dorian Gray

Unpublished notebook from 1845-50. Published in Seebacher (ed.), Oeuvres Complètes, vol. 10, p. 158 (Laffont, 1989). English translation from Robb, Victor Hugo p. 249 (Norton, 1997).

Interview with Gazzetta dello Sport, 16 Feb. 2006 http://www.msnbc.msn.com/id/11385083/

Eat, Pray, Love (2006)
Context: I walk up the stairs to my fourth-floor apartment, all alone. I let myself into my tiny little studio, all alone. I shut the door behind me. Another early bedtime in Rome. Another long night's sleep ahead of me, with nobody and nothing in my bed except a pile of Italian phrase books and dictionaries.
I am alone, I am all alone, I am completely alone.
Grasping this reality, I let go of my bag, drop to my knees, and press my forehead against the floor. There I offer up to the universe a fervent prayer of thanks.
First in English.
Then in Italian.
And then — just to get the point across — in Sanskrit. 
And since I am already down there in supplication on the floor, let me hold that position as I reach back in time three years earlier to the moment where this entire story began — a moment that also found me in this exact same posture: on my knees, on a floor, praying.

Rex v. Middleton (1819), 1 Chit. Rep. 656.