Answer:
Hello. You did not put the passage to which the question refers, but taking into account the legend of Gilgamesh we can conclude that the ancient Sumerians stimulated values such as loyalty to friendships, courage, determination and negativity about human mortality.
Explanation:
With the Gilgamesh story as a basis for identifying values stimulated by Sumerians, we can see that they exalted friendships, even among totally different people. This can be seen through the unlikely but successful friendship between Gilgamesh and Enkidu. In addition, Gilgamesh shows loyalty, courage and determination in his battles and goals, which shows that these were also values stimulated by this civilization.
Nevertheless, the most evident value in this story is the sumerians' aversion to human mortality, since Gilgamesh's main objective is to achieve immortality, something he does not achieve.