Observe your enemies, for they first find out your faults.
Antisthenes

I have come to believe that the whole world is an enigma, a harmless enigma that is made terrible by our own mad attempt to interpret it as though it had an underlying truth.
Umberto Eco

If you don't know anything about computers, just remember that they are machines that do exactly what you tell them but often surprise you in the result.
Richard Dawkins