When describing the animals that entered Noah's ark, the Torah refers to those animals which were ritually impure (טמא) as beasts "that are not pure." The Sages noted that the Torah intentionally speaks in a refined manner; therefore it avoided calling them "impure" outright.
Yet, this conclusion does not seem to hold water. When the Torah discusses which animals may be eaten and which may not be eaten (in parashot Shemini and Re'eih), the Torah does not use euphemisms. Instead, the Torah labels these animals as טמאים - impure beasts. Why does the Torah not use a more refined language when setting down the dietary laws?
Reb Yossi the Scholar, and Yossi the Boor
In a certain town two wealthy men resided - both named Yossi. One was Reb Yossi, a wise and learned scholar, while the second Yossi was an ignoramus. This second Yossi was commonly referred to as "Yossi the am ha'aretz" (Yossi the boor), to distinguish him from the scholarly Reb Yossi.
One day a visitor came to the door of Reb Yossi. It turned out, however, that he was looking for the unlearned Yossi. The butler who greeted him at the door, responded, "Oh, you need to go to the house of Yossi the am ha'aretz. He lives two streets over."
Reb Yossi, who overheard the butler, was not pleased hearing him speak like this. "You should not refer to someone as a boor. Other people may call him 'Yossi the am ha'aretz' to distinguish him from me. But in my house, this kind of talk is not acceptable. I don't want people to think I look down on my neighbors."
Soon after this, a matchmaker came to the scholar and proposed a match between his daughter and the son of Yossi the boor. The scholar was appalled that the shadchan should even suggest such a match. "My daughter should marry the son of Yossi the am ha'aretz?!” he cried out. “Never! Not while I am alive!"
After the shadchan left, the butler approached his boss. "I don't understand. Why is it, when I called him 'Yossi the am ha'aretz,' you reprimanded me; but now you used that very phrase?"
The scholar gave his butler a stern look. "Don't you understand the difference? If someone asks you information where someone lives, he is not asking for an account of his character and scholarship. All you need to do is provide his address. Anything more, if it is uncomplimentary, is simply lashon hara - uncalled-for gossip.
"But when I received a proposal for my daughter's marriage, I needed to be blunt in explaining why I object to such a match. It was my duty as the father to clarify in no uncertain terms that I will not have my daughter marry the unlearned son of an ignoramus."
(Adapted from The Maggid and his Parables, pp. 125-127.)