The Tyrone family is battling illness. Mary Tyrone has just returned
Jamie: He thinks it’s consumption, doesn’t he, Papa?
Tyrone: (reluctantly) He said it might be.
Jamie: (Moved, his love for his brother coming out.) Poor kid! God damn it! (He turns on his father accusingly.) It might never have happened if you’d sent him to a real doctor when he first got sick.
[... … …]
Tyrone: The less you say about Edmund’s sickness, the better for your conscience! You’re more responsible than anyone!
Jamie: (stung) That’s a lie! I won’t stand for that, Papa!
For full extended scene, please refer to clips or the script edition cited here: Eugene O’Neill, Long Day’s Journey Into Night, Yale Books, 2002, pp. 30-35.
More about this monologue