金剛經纂要刊定記 7.51

7.51

破微塵。經意云：以何義故說微塵耶？釋意云：以無實體故。又徵意云：所以說微塵空，又說微塵者，何謂也。釋意云：佛所說者，非實微塵是空微塵也。

Refuting micro-atoms. The sūtra's intended meaning is: For what reason are micro-atoms spoken of? The explanation means: Because they have no real substance. The questioning also means: Why is it that micro-atoms are said to be empty, yet micro-atoms are spoken of—what does this mean? The explanation means: What the Buddha speaks of is not real micro-atoms; they are empty micro-atoms.