3p7d.md (504B)
1 From the given essence of any thing certain 2 consequences necessarily follow (I. xxxvi.), nor have things any 3 power save such as necessarily follows from their nature as 4 determined (I. xxix.); wherefore the power of any given thing, 5 or the endeavour whereby, either alone or with other things, it 6 acts, or endeavours to act, that is (III. vi.), the power or 7 endeavour, wherewith it endeavours to persist in its own being, 8 is nothing else but the given or actual essence of the thing in 9 question. Q.E.D. 10 11