"To love anyone is to hope in him always. From the moment at which we begin to judge anyone, to limit our confidence in him, from the moment we identify [pigeonhole] him, and so reduce him to that, we cease to love him, and he ceases to be able to become better. We must dare to love in a world that does not know how to love."
I don't know who it was by, but I got it from a book by L'Engle . . .