Everything must be taken into account. If the fact will not fit the theory — let the theory go. - Agatha Christie

always bear in mind that the person who speaks may be lying

"A sound of laughter was heard-they turned sharply. Vera Claythorne was standing in the yard. She cried out in a high shrill voice, shaken with wild bursts of laughter:
"Do they keep bees on this island? Tell me that. Where do we go for honey? Ha! ha!"
They stared at her uncomprehendingly. It was as though the sane well-balanced girl had gone mad right before their eyes. She went on in that high unnatural voice:
"Don't stare like that! As though you thought I was mad. It's sane enough what I'm asking. Bees, hives, bees! Oh, don't you understand? Haven't you read that idiotic rhyme? It's up in all of your bedrooms-put it there for you to study! We might have come here straightaway if we'd had sense. Seven little soldiers chopping up sticks. And the next verse, I know the whole thing by heart, I tell you! Six little soldier boys playing with a hive. And that's why I'm asking-do they keep bees on this island- isn't it damned funny...?

You say your life is your own. But can you dare to ignore the chance that you are taking part in a gigantic drama under the orders of a divine Producer? Your cue may not come till the end of the play — it may be totally unimportant, a mere walking-on part, but upon it may hang the issues of the play if you do not give the cue to another player. The whole edifice may crumple. You as you, may not matter to anyone in the world, but you as a person in a particular place may matter unimaginably.