If you're mulling over ideas and ethics, trying to decide what's right for your life, trying to think over conduct and actions...
...you might get to the point where you think, "Everyone's going to think I'm crazy, but..."
Here is a question I've found that helps with that:
What will people think, three generations hence?
I used to kind of think the opinions of others don't matter. There's lots of quotes from talented performers that say that.
But that's, at best, incomplete. At worst, it's downright ignorant.
If you hold views out of harmony with society, you stand to potentially suffer for them.
Is it worth it?
It's an interesting question.
But I think one incomplete and partial answer is whether people will get in a few generations.
This has the benefit of sanity-checking your ideas against public morality -- which isn't entirely useless; in fact, even in the most broken society probably 80%+ of their morality is just sound wisdom from the ages. But it also lets you act with some confidence.
I made it not a complete standard of mine, but just one question I would ask when evaluating courses of action. It's a useful one.