“It takes two to speak the truth - one to speak and another to hear.”
“Friendship is a deep oneness that develops when two people, speaking the truth in love to one another, journey together to the same horizon.”
“You have two voices: the one you speak with and the one you think with. While the former is the one others hear, of greater importance is the one you hear.”
“In all your dealings with one another, speak the truth in love, that you may grow up.”
“A man may say, "From now on I'm going to speak the truth." But the truth hears him and runs away and hides before he's even done speaking.”
“We have two ears and only one tongue in order that we may hear more and speak less.”