"Everyone has noticed the taste which cats have for pausing and lounging between the two leaves of a half-shut door. Who is there who has not said to a cat, "Do come in!" There are men who, when an incident stands half-open before them, have the same tendency to halt in indecision between two resolutions, at the risk of getting crushed through the abrupt closing of the adventure by fate. The over-prudent, cats as they are, and because they are cats, sometimes incur more danger than the audacious."