As I Lay Dying by William Faulkner:
And so it was because I could not help it. It was then, and then I saw Darl and he knew. He said he knew without the words like he told me that ma is going to die without words, and I knew he knew because if he had said he knew with the words I would not have believed that he had been there and saw us. But he said he did know and I said “Are you going to tell pa are you going to kill him?” without the words I said it and he said “Why?” without the words. And that’s why I can talk to him with knowing with hating because he knows.