From Deleuze and Guattari’s A Thousand Plateaus:
His journeyman, the monk-mason Garin de Troyes, speaks of an operative logic of movement enabling the “initiate” to draw, then hew the volumes “in penetration space,” to make it so that “the cutting line propels the equation”. One does not represent, one engenders and traverses. This science is characterized less by the absence of equations rather than the very different role they play: instead of being good forms absolutely that organize matter, they are “generated” as “forces of thrust” by the material, in a qualitative calculus of the optimum.
From page 402 of Reiser + Unemoto’s Atlas of Novel Techtonics