Date: 1900, 1901

"We move amidst generalities and symbols, as within a tilt-yard in which our force is effectively pitted against other forces; and fascinated by action, tempted by it, for our own good, on to the field it has selected, we live in a zone midway between things and ourselves, externally to things, e...

— Bergson, Henri-Louis (1859-1941)

Date: 1947, 1958

"Turned back upon himself, secure within some imaginary inner fortress, he is the plaything of every hallucination, every spontaneous or deliberate ideological illusion."

— Lefebvre, Henri (1901-1991)

Date: 1961

"A highly symbolic position, which will doubtless remain his until our own day, if we are wililng to admit that what was formerly a visible fortress of order has now become a castle of conscience."

— Foucault, Michel (1926-1984)