Wonderful things, horses. Never know what they will do, or won't do.
One place is very like another.
A weak man in a corner is more dangerous than a strong man.
The past is the father of the present.
If anyone is really determined to lend you a book, you never can get out of it!
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.