(ANSA) - ROME, SEP 18 - Migrants can constitute great potential, President Sergio Mattarella said in inaugurating the school year at Forlì in Romagna on Monday.
    In other remarks, the head of State said: isolation does not help civic spirit; broad bases action was needed against youth crime; teachers' work should be encouraged, and its prestige restored; and tyranny starts when people no longer tolerate authorities. (ANSA).