46.
You never run out of things that can go wrong.
47.
The primary function of the design engineer is to make things difficult for the fabricator and impossible for the serviceman.
48.
Some people manage by the book, even though they don't know who wrote the book or even what book.
49.
When the lights are out, all women are beautiful.
50.
The further you are in advance of your own positions, the more likely your artillery will shoot short.