Delegimus certum otium studiorum, quam incertum negotium bellorum. We have opted for the certain leisure of study, rather than the uncertain business of war.

-Gerbert later Pope Sylvester II
  Letter to Monk Raymond.

   O Woman! in our hours of ease, Uncertain, coy, and hard to please, And variable as the shade By the light quivering aspen made; When pain and anguish wring the brow, A ministering angel thou!

-Scott, Sir Walter
  Marmion, canto 6, stanza 30.