“To say that we cannot know anything about God is to say something about God; it is to say that if there is a God, he is unknowable. But in that case, he is not entirely unknowable, for the agnostic certainly thinks that we can know one thing about him: That nothing else can be known about him. In the end, agnosticism is an illogical position to hold to.”
— J. Budziszewski
Quoted in Ron Rhodes, Answering the Objections of Atheists, Agnostics & Skeptics, p. 25.