Final answer:
The character Achilles in ancient Greek literature teaches the reader or audience about heroism, fate, and the consequences of pride.
Step-by-step explanation:
In the mind of an ancient Greek, the character Achilles taught the reader or audience about heroism, fate, and the consequences of pride. Achilles is depicted as a great hero who is invincible, but his vulnerability in the form of his heel leads to his downfall. This teaches the reader or audience about the limits of human power and the importance of humility.