'Truth seduces us very easily into a kind of joy of possession: I have comprehended this and that, learned it, understood it. Knowledge is power. I am therefore more than the other man who does not know this and that. I have great possibilities and also greater temptations. Anyone who deals with truth - as we theologians certainly do - succumbs all too easily to the psychology of the possessor. But love is the opposite of the will to possess. It is self-giving. It boasteth not in itself, but humbleth itself.'
Helmut Thielicke in Jared C Wilson, The Pastor's Justification, p.62.