Take great care to restrain your tongue and be circumspect. Let only discretion and charity open your mouth. And practice the advice of all the Saints to break silence only with words that are worth more than silence. Silence is one of the most certain signs that God dwells in a soul.
Silence is the beautiful fruit of prayer. We must learn not only the silence of the mouth, but also the silence of the heart, of the eyes, of the ears and of the mind, which I call the five silences. Say it and memorize it on your five fingers.