• Pure, existential space was regularly winking at me, each time in a more impressive manner, and this sensation of total freedom attracted me so powerfully that I painted some monochrome surfaces just to 'see,' to 'see' with my own eyes what existential sensibility granted me: absolute freedom!

    "Yves Klein, 1928 - 1962, Selected Writings". Book by Yves Klein, ed. J & J. p.15, 1974.