**Who should you be 10% more skeptical of?** You should be 10% more skeptical of *people you agree with.* **Who should you be 10% more charitable to?** You should be 10% more charitable to *people you disagree with.* **Which ideas should you look for flaws in?** You should look for flaws in *ideas you like.* **Which ideas should you look for strengths in?** You should look for strengths in *ideas you dislike.* **Where should you learn from?** You should learn from *sources that engage with competing ideas.*