commonplace book

If you come across a passage you like, copy it out into a commonplace book.

My memory is well stored, but unfortunately I have never kept a diary or commonplace book of any kind.

It is a good plan, in order to fix on your mind what you read and wish to remember, to keep a commonplace book.

It is the kind of book that grows out of a romantic disposition and an assiduously stuffed commonplace book.

And yet it appears to have been deliberately copied with some amplification from an entry in his last year's commonplace book.

"I have my trade, a lame leg and the marks of smallpox—and I never was good-looking, anyway," he wrote in his commonplace-book.