“Silence is more eloquent than words.”
“Well-timed silence hath more eloquence than speech.”
“I have never heard a more eloquent silence.”
“Empty words show an empty mind, and silence speaks most eloquently of all.”
“The pause - that impressive silence, that eloquent silence, that geometrically progressive silence which often achieves a desired effect where no combination of words, howsoever felicitous, could accomplish it.”
“Feelings need not be shown to be felt. Words need not be spoken to understand. Silence, is sometimes the most eloquent lesson.”