“Life itself is an unsolved mystery", said the clergyman gravely.”

“When the sea goes down, there will come from the mainland boats and men. And they will find ten dead bodies and an unsolved problem on Indian Island.”

“It is deplorable...to remove all the romance - all the mystery!”

“Life can be very terrible," he said. "One needs much courage.""To kill oneself? yes, I suppose one does.""Also to live," said Poirot, "one needs courage.”

“There is nothing more thrilling in this world, I think, than having a child that is yours, and yet is mysteriously a stranger.”

“Do you know my friend that each one of us is a dark mystery, a maze of conflicting passions and desire and aptitudes?”

“The truth, however ugly in itself, is always curious and beautiful to seekers after it.”