He also said of air that its minuscule components are so smooth that one can barely feel them .
This places air between fire and water which Plato regarded as appropriate because it is intermediate in its mobility , sharpness , and ability to penetrate .
Plato also said of air that its minuscule components are so smooth that one can barely feel them .
This places air between fire and water which Plato regarded as appropriate because it is intermediate in its mobility , sharpness , and ability to penetrate .