4
but with an entrance no wider than a river.
5
No one who wishes to enter that sea, whether to visit it or control it, can reach its broad expanse of water without passing through the narrow entrance.
6
Or take another example: Picture a city built on a plain. The city is full of all kinds of good things,
7
but the entrance to it is narrow and steep, with fire on one side and deep water on the other.
8
The one path between the fire and the water is so narrow that only one person at a time may walk on it.