Author of quotes: John Dickson Carr

“We all know the bitterness of loss, madam,” said the detective. “And we always feel guilty, if only because we didn’t smile often enough.”

When something so focus on other things, forget, and, sometimes, for something I bet your head, and it is in vain. I think that's exactly what it is true and it turns out - nothing like that. And only in moments of extreme fatigue, when disconnected consciousness, suddenly remember the truth.