Note 22 — Chapter VII · THE FOUNDATIONS OF PHYSICS.
Reading edition
The question is thus stated by Seneca: ‘[quaeramus] continua sit omnis et plena materia ... an diducta, et solidis inane permixtum sit’ Sen. Dial. viii 4, 2; and answered as follows ‘nihil usquam inane est’ N. Q. iii 16, 5. Cf. Arnim i 95 and ii 425.