The Enders Game series had a pretty profound effect on my worldview, and also provided a big lesson on separating art from the artist because holy shit do some of the lessons I took away from that series seem to run totally opposite to Orson Scott Card's personal views and politics.

It's hard to say exactly what clicked where and what it changed for me because I read them in about middle school which is kind of when people are really starting to form real opinions of the world anyway.

Major takeaways for me include

A general dislike of war, even when it's justified you're going to end up doing absolutely terrible things and in retrospect there often really aren't good guys.

Politics are in their own way just as terrifying as war.

Respect for life, cultures, and viewpoints different from my own, and willingness to examine the world through those different perspectives. That doesn't mean I agree with them, or find them acceptable, or worthy of being tolerated, but I do think it's important to at least try to see why they think the way they do.

A whole lot of awe at the potential of genetic engineering, artificial intelligence, etc. tempered by distrust of my fellow man to use them responsibly.