成唯識論述記 2.27

2.27

The Commentary states: This is the second objection: that if atoms lack spatial parts, seeing and touching would admit of no distinction. Setting forth the reasoning from facts: if one holds that atoms completely lack spatial parts, when the eye sees a wall and the like, or the hand touches it, one grasps only this side that is seen or touched, and does not grasp that other part that is not seen or touched; yet this composite object is precisely the atoms. If atoms lack spatial parts, when seeing or touching this side, one should also grasp that part; because this is precisely that; that is just like this—the formal inference being the same as before. Since coarse matter's spatial parts are precisely the atoms, we know atoms definitely have spatial parts.