One Must Make One's Own Mistakes

Assumptions Are Dangerous Things.

One Doesn't Recognize The Really Important Moments In One's Life Until It's Too Late.

To Care Passionately For Another Human Creature Brings Always More Sorrow Than Joy; But At The Same Time, Elinor, One Would Not Be Without Experience. Anyone Who Has Never Really Loved Has Never Really Lived.

It's A Mystery To Me How Anyone Ever Gets Any Nourishment In This Place. They Must Eat Their Meals Standing Up By The Window So As To Be Sure Of Not Missing Anything.

Hercule Poirot: I Am An Imbecile. I See Only Half Of The Picture. Miss Lemon: I Don't Even See That.