At my time of life, one knows that the worst is usually true.

Poirot said placidly, “One does not, you know, employ merely the muscles. I do not need to bend and measure the footprints and pick up the cigarette ends and examine the bent blades of grass. It is enough for me to sit back in my chair and think. It is this – ” he tapped his egg-shaped head – “this, that functions!

In conversation, points arise! If a human being converses much, it is impossible for him to avoid the truth! (Hercule Poirot)

The contemporary historian never writes such a true history as the historian of a later generation.

I have wanted . . . to commit a murder myself. I recognized this as the desire of the artist to express himself! . . . But-incongruous as it may seem to some-I was restrained and hampered by my innate sense of justice. The innocent must not suffer.

Ah, but life is like that! It does not permit you to arrange and order it as you will. It will not permit you to escape emotion, to live by the intellect and by reason! You cannot say, 'I will feel so much and no more.' Life, Mr. Welman, whatever else it is, is not reasonable. [Hercule Poirot]

Every murderer is probably somebody's old friend.