"We must understand the religious nature of Islamic expansion and the methods used to achieve it. By trying to abstract these motivation from the soul of this particular religion, which is, on this score, unlike most others, only makes it impossible to describe what in fact is going on in the mind of the adversary that is Islam. Wars are first fought in minds—and this is a war."
January 1, 1970
https://en.wikiquote.org/wiki/James_V._Schall