We owe most of our great inventions and most of the achievements of genius to idleness either enforced or voluntary.

One is alone when the last one who remembers is gone.

There is no question of defence. I have always acted in accordance with the dictates of my conscience. I have nothing with which to reproach myself.

As you yourself have said, what other explanation can there be?' Poirot stared straight ahead of him. 'That is what I ask myself,' he said. 'That is what I never cease to ask myself.

Beastly things, teeth. Give us trouble from the cradle to the grave.

Everybody always knows something," said Adam, "even if it's something they don't know they know.

Imagination is a good servant, and a bad master.