" Their story begins on ground level, with footsteps. They are myriad, but do not compose a series. They cannot be counted because each unit has a qualitative character: a style of tactile apprehension and kinesthetic appropriation. Their swarming mass is an innumerable collection of singularities. Their intertwined paths give their shape to spaces. They weave places together. In that respect, pedestrian movements form one of these 'real systems whose existence in fact makes up the city.' They are not localized; it is rather they that spatialize. They are no more inserted within a container than those Chinese character speakers sketch out on their hands with their fingertips. "

― Michel de Certeau , The Practice of Everyday Life