Don't Panic
The single most logical phrase in the entire galaxy. Coined by Douglas Adams it is found in large friendly letters on the front of The Hitchhikers Guide to the Galaxy.
Example:
My house as been struck by lightning WITH ME FIXING THE ARIEL for the THIRD time in a row, and my boss has just fired me from my job with brilliant prospects because I had to come in wearing bandages and with crazy sticking-up hair, and your telling me NOT TO PANIC?
My house as been struck by lightning WITH ME FIXING THE ARIEL for the THIRD time in a row, and my boss has just fired me from my job with brilliant prospects because I had to come in wearing bandages and with crazy sticking-up hair, and your telling me NOT TO PANIC?