Rules for the Young of Railways.

1. Never wear the stationmaster's hat until you have his head and his salary under it.

2. Remember Moses and the “tablets.”

3. The engine must always proceed in front except when it is going in the opposite direction.

4. Always tell the truth—unless you have an exceptionally good memory.

5. It's a wrong train that has no earning.

6. Railways run on steam; you can't get results with hot air.

7. Take no notice of “nit-wits” who think they can tell you how to run the railway. (This is really the only one of the above rules you need heed.)