As a Navy man you are, in a special sense, a good citizen of these United States. Your uniform alone does not entitle you to special privileges, rather it obligates you to set high standards of conduct and performance of duty. At home, and on duty abroad in foreign countries, you will be under constant observation as a representative of the United States government. Be sure that no careless act of yours brings discredit to your uniform or to your country's flag.
Service in the Navy can be whatever you make it. It takes some time to understand and become adapted to the ways of the Navy, for going to sea in ships and aircraft is a tough, serious business, particularly in these troubled times. If you must work hard and at times miss a leave period or a few liberties in your home port, remember that you chose a man's job when you joined the Navy.
BLUEJACKETS' MANUAL 1957