Those who have difficulty in accepting the idea of a personal shadow as far as they themselves are concerned, whose knowledge of human nature is two-dimensional (that is, without depth), all too easily think that morality attaches to feelings, that hateful, hostile, cruel or greedy feelings are immoral. They do not, perhaps, realise that the feelings that arise in us are neither moral nor immoral, but neutral. The supreme importance of morality is the way we choose to act on our feelings. And we shall not be free to choose if we do not know what they are.

Jack H Wallis, 1988