.

PERSEVERANCE.
THE reader expects to hear of angles and lines, and finds, instead of these citizens of the scientific world, only people out of common life, such as he meets with every day in the street.

And yet the author cannot make up his mind to become a hair's breadth more mathematical than the subject seems to him to require, and he is not alarmed at the surprise which the reader may show.
In War more than anywhere else in the world things happen differently to what we had expected, and look differently when near, to what they did at a distance.

With what serenity the architect can watch his work gradually rising and growing into his plan.

The doctor although much more at the mercy of mysterious agencies and chances than the architect, still knows enough of the forms and effects of his means.