" You are the patient one, Mademoiselle,' said Poirot to Miss Debenham.

She shrugged her shoulders slightly. 'What else can one do?'

You are a philosopher, Mademoiselle.'

That implies a detached attitude. I think my attitude is more selfish. I have learned to save myself useless emotion. "

― Agatha Christie , Murder on the Orient Express (Hercule Poirot, #9)