Actual Error Covariance

Famous quotes containing the words actual and/or error:

“Description is revelation. It is not
The thing described, nor false facsimile.
It is an artificial thing that exists,
In its own seeming, plainly visible,
Yet not too closely the double of our lives,
Intenser than any actual life could be....”
—Wallace Stevens (1879–1955)

“We call contrary to nature what happens contrary to custom; nothing is anything but according to nature, whatever it may be, Let this universal and natural reason drive out of us the error and astonishment that novelty brings us.”
—Michel de Montaigne (1533–1592)