But however you look at it quarks are made of SOME THING because you can't get some thing from "nothing". Then again nothing really exists but motion and even motion is an illusion.... There is however latency or potential which bears a strong non-observable resemblance to "nothing" or "no (physical) thing" but is from which all "things" are derived or made manifest. This potential is pure Undifferentiated Mind which is motionless "knowing" as opposed to active "thinking".
See Also
Bearden - Precursor Engineering: Via Tickling of the Dirac Sea Vacuum
Dirac Sea
Etheric Elements
Interetheric
Subdivision
vacuum
Will