"Brothers, love is a teacher; but one must know how to acquire it, for it is hard to acquire, it is dearly bought, it is won slowly by long labour. For we must love not only occasionally, for a moment, but for ever. Every one can love occasionally, even the wicked can."
(The Brothers Karamazov by Fyodor Dosteoevsky, Part 2, Bk. 6, Chpt. 3, Pg. 294)