Actual Error Covariance

Famous quotes containing the words actual and/or error:

“So far no actual revolutionary masses have come into view. This might be considered sufficient reason for reproaching someone who has set out to describe a revolution. But it is not our fault. This is, after all, a German revolution.”
—Alfred Döblin (1878–1957)

“There exists a black kingdom which the eyes of man avoid because its landscape fails signally to flatter them. This darkness, which he imagines he can dispense with in describing the light, is error with its unknown characteristics.... Error is certainty’s constant companion. Error is the corollary of evidence. And anything said about truth may equally well be said about error: the delusion will be no greater.”
—Louis Aragon (1897–1982)