Observed Variable

Famous quotes containing the words observed and/or variable:

“Man, being the servant and interpreter of nature, can do and understand so much and so much only as he has observed in fact or in the course of nature: beyond this he neither knows anything nor can do anything.”
—Francis Bacon (1560–1626)

“There is not so variable a thing in nature as a lady’s head-dress.”
—Joseph Addison (1672–1719)