Long Day's Journey Into Night
Yes, forget! Forget everything and face nothing! It's a convenient philosophy if you've no ambition in life except to – (1.1.45)
I want you to promise me that even if it should turn out to be something worse, you'll know I'll soon be all right again, anyway, and you won't worry yourself sick, and you'll keep on taking care of yourself –
I won't listen when you're so silly! There's absolutely no reason to talk as if you expected something dreadful! Of course, I promise you. I give you my sacred word of honor! But I suppose you're remembering I've promised before on my word of honor. (1.1.226)
Mary! For God's sake, forget the past!
With strange objective calm.
Why? How can I? The past is the present, isn't it? It's the future, too. We all try to lie out of that but life won't let us. (2.2.103)