How submerged does a reference have to be before it drowns?

“Martha was a clever girl, and therefore not a believer.”

“I had wanted life not to bother me too much, and had succeeded—and how pitiful …”

“(on grief) And you do come out of it, that’s true. After a year, after five. Bu…”

“It seemed to us philosophically self-evident that suicide was every free person…”