Yes those versus are quite true. You can do a engine search and look up Moses Maimonides who was one of the greatest jewish Rabbis of the middle ages and was an expert on Talmudic laws and explanations.
It is true and the talmud is full of versus like that.
it's amazing that almost anywhere in the world a person can get a bible and go to a Christian church and ask about the beliefs of that Christian church and can study the bible.
also it's amazing that the Coran the holy book of Islam is available almost anywhere in the world to be obtained and studied and a person can go and approach a mosque and ask about studying the Coran if they are interested.
I know a muslim lady on my job who has openly and willingly explained about the Coran to anyone who was interested to listen.
Yet it is amazing that The holy books of the Jews are so secret. A copy of the Talmud is not even on sale in a book store wherea person can easily purchase a bble or the Coran. It appears that if you do a "google search on the internet you will be able to find more information that the people would like to keep secret.
A gentile person could never go in to a synagogoue and ask the local rabbai if he could take a look at the talmud.
So do the research and you will find out many more interesting points from the talmud that are very unusual for a holy book.
This is where Jesus in the bible condemned the pharaisees in his day by saying (you have made the word of God invalid by your traditions (oral teachings which were later copied down and codified in the talmudic writings)
Yes the Jews did recieve the laws from God through Moses on Mount Sinai yet the laws have been changed over the centuries by the oral traditions.