I value people and situations that help me think about how I think.
One of my all-time favorite people (and perhaps the smartest guy I know period) is Venkatesh Rao.
He gave an informative talk at LIFT this year which is 18 minutes long, worth it, and will help you think about how you approach the world.
It’s all about Resilience. I call it “leave it all on the field,” but same idea.