And heaven had wanted one immortal song.
But wild Ambition loves to slide, not stand,
And Fortune's ice prefers to Virtue's land.

Pt. I line 197-199. Compare Knolles, History (under a portrait of Mustapha I): "Greatnesse on Goodnesse loves to slide, not stand,/ And leaves, for Fortune's ice, Vertue's ferme land". - Absalom and Achitophel (1681)