‘Yes,’ replied Nicholas, turning towards the corner from which the voice proceeded. ‘Who is that?’

So that examining the relation in time of the commands to the events, we find that a command can never be the cause of the event, but that a certain definite dependence exists between the two.

Napoleon walked about in front of his tent, looked at the fires and listened to these sounds, and as he was passing a tall guardsman in a shaggy cap, who was standing sentinel before his tent and had drawn himself up like a black pillar at sight of the Emperor, Napoleon stopped in front of him.