Again，itwouldseemimpossiblethatthesubstanceandthatof
whichitisthesubstanceshouldexistapart；how，therefore，could
theIdeas，beingthesubstancesofthings，existapart？InthePhaedo’
thecaseisstatedinthisway-thattheFormsarecausesbothofbeing
andofbecoming；yetwhentheFormsexist，stillthethingsthatshare