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The ordinary village witch, like Moss, lived on a few words of the True Speech handed down as great treasures from older witches or bought at high cost from sorcerers, and a supply of common spells of finding and mending, much meaningless ritual and mystery-making and gibberish, a solid experiential training in midwifery, bonesetting, and curing animal and human ailments, a good knowledge of herbs mixed with a mess of superstitions – all this built up on whatever native gift she might have of healing, chanting, changing, or spellcasting. Such a mixture might be a good one or a bad one. Some witches were fierce, bitter women, ready to do harm and knowing no reason not to do harm. Most were midwives and healers with a few love potions, fertility charms, and potency spells on the side, and a good deal of quiet cynicism about them. A few, having wisdom though no learning, used their gift purely for good, though they could not tell, as any prentice wizard could, the reason for what they did, and prate of the Balance and the Way of Power to justify their action or abstention. ‘I follow my heart,’ one of these women had said to Tenar when she was Ogion’s ward and pupil. ‘Lord Ogion is a great mage. He does you great honour, teaching you. But look and see, child, if all he’s taught you isn’t finally to follow your heart.
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Ursula K. Le Guin (Tehanu (Earthsea Cycle, #4))