This line is short.
But it closes the door.

If wisdom were something to be gained by reading,
having the book would be enough.
Waiting is learned there.

Many people know much.
Few can get through a bad day
with what they know.

Saadi says this
in the chapter on contentment.
Recalling Luqman,
who chose the corner of patience.

The corner is narrow.
The view is wide.