Vous avez cherché: permane (Latin - Anglais)

tu vero permane in his quae didicisti et credita sunt tibi sciens a quo didiceri
but continue thou in the things which thou hast learned and hast been assured of, knowing of whom thou hast learned them;

quasi flos egreditur et conteritur et fugit velut umbra et numquam in eodem statu permane
he cometh forth like a flower, and is cut down: he fleeth also as a shadow, and continueth not.