Therefore, training confronts men frequently with situations that look dangerous, but which skill and coolness can avert.

In this way, the pupil becomes familiar with the face of danger, and learns that it is not so terrible as it seems.

Nothing else makes a man so brave regarding a certain danger as to have met that danger successfully before.

This statement must be qualified with the remark that in some cases a danger, although passed successfully, has been known to do a harm to the nervous system from which it never has recovered.

This is especially the case if it was accompanied with a great and sudden noise and the evidence of great injury to others.