Final answer:
In Plato's Myth of Er, the person with the first choice chose the life of a powerful tyrant, not foreseeing the future challenges, reflecting the significance of wisdom in decision-making.
Step-by-step explanation:
In Plato's Myth of Er, the person who was given the first choice in selecting his next life chose the life of a powerful and honored tyrant, unaware of the future sufferings that this life would entail. This choice illustrates the overarching theme in many of Plato's works, which is the lack of wisdom and the deception by appearances. It demonstrates Plato's belief that individuals often choose their lives based on perceived glories and honors, without understanding the true nature of virtue or the potential consequences of their choices. The text further explains that choices in life are consequential and irreversible, highlighting the importance of wisdom and the examined life that Plato endorses.