“What is important is not what you hear said, it's what you observe.”

“I did not hear what you said, but I absolutely disagree with you.”

“Then what he said and how he said it won't be important any more. What will be important are all the things you never got to say.”

“The news isn't there to tell you what happened. It's there to tell you what it wants you to hear or what it thinks you want to hear.”

“You can't hear me.
You can't hear me.
You can't hear what I'm saying.
You can't hear what I'm saying to you.”

“What do you do when you finally hear everything you've always thought said aloud?”

“…. there is a difference between hearing and listening. You can't always help what you hear. But you can control what holds your interest, what you choose to dwell on.”

““Well, what are you doing? What have you done?”
“I am sitting in this char,” said Poirot. “Thinking,” he added.
“Is that all?” said Mrs. Oliver.
“It is the important thing,” said Poirot.”

“If you're going to say what you want to say, you're going to hear what you don't want to hear.”

“Of what must be said and what must not be said. The importance of knowing.”