I read each story twice, and knew one of them by heart.
I knew the number by heart, which was a bad sign all on its own.
Every year he held their attention with the story, and many knew it by heart.
We've been down this road so many times before that everyone knows their lines by heart.
I know the address by heart, I've written so often.
Richard still knew that book by heart - every word.
He knew them by heart, still ;they never came easy.
The two of us, working together, knew every piece by heart.
He seemed to know the book by heart, but that didn't matter.
There is her history; the world knows it by heart.