Book 8, Hunters of Gor, page 311 ~¤~

" 'And what then' I asked, 'do you think I would bring?'
He looked at me, smiling.
'What?' I asked.
'I would think,' he said, 'that you would bring somewhere between fifteen and twenty copper tarsks.'
'Copper tarsks!' I cried.
'Yes' he said.
'Beast' I cried. 'Beast'
...
'But remember,' he said smiling, 'it is slaves who are assessed and have prices. Free women are priceless.'
'Yes,' I said, somewhat mollified, stepping back. 'Yes!' I must remember that I was priceless. I was a free woman"

Book 19, Kajira of Gor, page 97

"A free woman is inordinately precious. She is a thousand times, and more, above a mere slave."

Book 20, Players of Gor, page 92

"The beauty of a Free Woman is a commodity beyond price. This was not because there was anything special about it, of course, but only because it was not for sale."

Book 20, Players of Gor, page 132

"Slaves generally have some value, at least to the master, even if not much. They, at least, can be bought and sold. Free women, on the other hand, being priceless, have for most practical purposes no value whatsoever."

Book 20, Players of Gor, page 229

" 'You are in far greater danger of being killed as a free woman,' I said. 'Just as it would not occur to most men to kill a pet sleen or a kaiila, it would not occur to them to kill a slave. She is, like other domestic animals, not a person, but a property. She, like them, has certain sorts of work which she may be put, and very pleasurable work often, and, like them, has her many values and uses. If a city is taken, while free folks may be fleeing about, and be subject to indiscriminate slaughter, she is likely, instead, to be secured and protected. She is, you see, like the sleen and kaiila, part of the clearly understood spoils of victory. Surely you can understand that you yourself, for example, might make delicious booty.' "

Book 21, Mercenaries of Gor, page 419

"Free Women technically are priceless, they are also, usually, in bed worthless. They are not worthy of holding candles within a thousand pasangs of a slave."

Book 23, Renegades of Gor, page 63

" 'But a free woman is a thousand times more valuable than a slave!' she said. 'Many,' said I, 'regard a slave as a thousand times more valuable than a free woman.' It interested me that she had put a specific value on a free woman. 'But then,' I said, 'many also believe that the free woman and the slave are the same, except for a legal technicality.' 'Free women are only slaves, not yet collared,' I said."

Book 24, Vagabonds of Gor, pages 192 - 193