Does All Knowledge Come From Experience?

Does all knowledge come from experience ?
From the classical empiricist point of view, -traditionally associated with John Locke, and primarily his 'Essay Concerning Human Understanding'- almost certainly so. Locke's epistemological contention was that knowledge is derived from experiential concepts acquired in the form of sense-data. These sense-data were supposed, according to Locke, to be of primary and secondary qualities, which when combined with and abstracted from each other gave rise to tertiary qualities. Examples of primary qualities in an object would be the size and shape of…