While there he composed Rhetoricae institutionis libri quinque (1552), a paraphrase of the four works of the Hermogenean corpus, at the age of 27.[6][6][7][7] In 1557 he left with Juan Lorenzo Palmireno to work at the University of Zaragoza, but in 1563 returned yet again to the University of Valencia, where he continued to publish on Greek language and rhetoric.[2][5]