The only possible form of exercise is to talk, not to walk.

-Wilde, Oscar Fingal O'FlahertieWills
Quoted in Alvin Redman The Epigrams of OscarWilde (1952).

Oh! pleasant exercise of hope and joy! For mighty were the auxiliars which then stood Upon our side, we who were strong in love! Bliss it was in that dawn to be alive, But to be young was very heaven!

-Wordsworth,William
  'The French Revolution as it appeared to enthusiasts at its commencement', l.1^5 (published in The Friend, 26 Oct.1809).