ترجمة - انجليزي-ياباني - Nothing is created, everything is transformed.

The law of physics is "Matter is neither created nor destroyed."

(This is a suitable translation.)
It you want word-for-word translation,It is translated as
"作り出せる物質は無い、全ての物質は変化によって生み出される"

TUKURIDASERU　BU　SHITU　WA　NAI．SUBETENO　BUSHITU　WA　HENKA　NI　YOTTE　UMIDASARERU．