Hexagram 41, line 5:
Six in the Fifth. Increased by a ten string turtle. It cannot be turned away. Great good fortune.
Six in the Fifth. Someone increases by ten pairs of tortoise shells. They cannot be denied. Primordial good fortune.
The description here of ten pairs of turtles is a relatively modern view. The old text translation is cast in the light of the oracle bones that have been available to scholars since 1899. These bones, many of which are turtle plastrons, are inscribed with the earliest written characters of China, Jia Gu Wen, oracle bone language. Many of the divinations performed on the plastrons are asked in a positive/negative form, i.e. X will happen/X will not happen, with questions on opposite sides of the shell’s surface. But I am not aware of readings split across pairs of shells. We can’t really say that paired shells were not used in reading, but to my knowledge the oracle bone record doesn’t back it up. Thus I believe the original ‘pair’ here is not the turtle shells, but the strings of cowrie shell money that would be used as a unit to give the value of a large and rare turtle shell.
There are a couple of minor differences between the old and next text based on Mawangdui Yi Jing on Silk. The ‘someone’ is missing in that text and a different character is user for reject, one that is more literally ‘turn away’.
The role of the turtle in Chinese culture and tradition is formidable. It was on the back of a great turtle that Fu Xi, the founding sage and figure of legend, first saw the trigrams of the Yi. The turtle is extremely long lived (some species live more than 200 years), so they represent longevity and the potential for eternal life on earth, a strong ‘meme’ in Chinese belief systems. And yet there is a flip side to this image of the sacred and numinous turtle…the sexual images of the turtle. Due to the peculiarities of anatomy the penis of a turtle is disproportionally long. Also, the head and neck of a turtle easily suggest the male member. So in colloquial Chinese there are many expressions using the term turtle that involve cuckolding and other sexual concepts. Also, one of the greatest insults in Chinese is to call someone a turtle egg, since turtles bury their eggs on the beach and walk away, not even looking back. Thus the insult is like calling someone a bastard to the Nth degree, not only abandoned by their father but even by their mother. So in modern times we have a mix of the sacred and profane in one animal. In antiquity we also have a mix of practices. On the one hand we have the sacred tortoises raised in the courts of nobility for divination (the plastron of the turtle was prepared and then hot objects used to form cracks on the surface that were interpreted). On the other we have turtles included in the standard list of food items taken from nature by the peasantry and nobility alike (see for instance the incident in Duke Xuan 4th year: Par. 3 of the Zuo Traditions).
Iulian Shchutskii’s Russian translation of the Yi:
The first thing that must be understood about this line text is that the first phrases of the text were added at a very late date and by mistake, and belong in the second line of the next hexagram, as reflected in the most ancient layers of commentary literature. Here, since this text was confirmed only in the late commentaries and we can only see it as anticipation for developments in the next position. The turtle was used in divination in ancient China, which was a sacred cult animal and considered very valuable. So the image of such a turtle is used in this text that speaks of automatic manifestation of the best aspects of a person’s actions. But it is only by consciously tamping down a person’s egotistic character traits that these good aspects can be revealed. Thus we can only conditionally accept the text of the fifth line as it exists, as follows:
Weak line in the fifth place.
Able to multiply that (in which there is a lack) with a turtle, the oracle of which (costs) 10 strings (of cash).
Its indications cannot be disregarded.
Primordial good fortune.
Oracle of the Singularity version from Second Life:
The next person you meet will answer your question beyond all doubt.
Great good fortune.
 I don’t agree with Shchutskii here. There are several instances of repeated texts in the Yi, and some of them occur between hexagrams, often, as here, linking the corresponding positions in the two hexagrams. I see no evidence of this being an error and the image text of this line does not point to a different text from the received one.
Forest of Changes verse for today:
41 - 5
The rivers and streams,
Run east to the sea.
I take all I own,
And buy carp and bream.