Of course, in an age of madness, to expect to be untouched by madness is a form of madness. But the pursuit of sanity can be a form of madness, too.

-Bellow, Saul
  Henderson The Rain King, ch.3.

Some of us will fight and fight again to save the party we love.We will fight and fight againtobring back sanityand honestyand dignity, so that our party, with its great past, may retain its glory and its greatness.

-Gaitskell, Hugh
  Denouncing unilateralists trying to gain control of the party. Labour Party conference speech, Oct.

Neither conscience nor sanity itself suggests that the United States is, or should or could be the global gendarme.

-McNamara, Robert Strange
  Speech to US newspaper editors. Reported in the NewYork Times,19 May.

There ain't no Sanity Claus.

-Marx, Groucho originally Julius Henry Marx
  Line delivered in  A Night at the Opera (screenplay by George Kaufman and Morrie Ryskind).

Who in the rainbow can draw the line where the violet tint ends and the orange tint begins? Distinctly we see the difference of the colors, but where exactly does the one first blendingly enter into the other? So with sanity and insanity.

-Melville, Herman
Billy Budd, Foretopman (first published1924), ch.21.

If this can be termed the century of the common man, then soccer, of all sports, is surely his game† In a world haunted by thehydrogenand napalm bomb, thefootball field is a place where sanity and hope are still left unmolested.

-Rous, Sir Stanley
  Quoted in Bryon Butler The Official History of the Football Association (1986).

The social problem of the twentieth century is whether civilized nations can restore themselves to sanity after their nineteenth-century aberrations of individualism and capitalism.

-Small, AlbionW
  'AVision of Social Efficiency', in the AmericanJournal of Sociology, Jan.